{"id":1098,"date":"2024-02-24T19:33:06","date_gmt":"2024-02-24T19:33:06","guid":{"rendered":"https:\/\/howtogeek.blog\/ja\/?p=1098"},"modified":"2024-02-24T19:33:06","modified_gmt":"2024-02-24T19:33:06","slug":"how-to-fix-lsass-exe-high-cpu-usage-on-windows-11-ja","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/ja\/how-to-fix-lsass-exe-high-cpu-usage-on-windows-11-ja\/","title":{"rendered":"Windows 11 \u3067 lsass.exe \u306e\u9ad8\u3044 CPU \u4f7f\u7528\u7387\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>Windows \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30bf\u30b9\u30af \u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306b\u300cLsass.exe\u300d\u30d7\u30ed\u30bb\u30b9\u304c\u3042\u308b\u3053\u3068\u306b\u6c17\u3065\u3044\u305f\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 LSASS (Local Security Authorization Subsystem Service) \u306f\u3001Windows \u30d9\u30fc\u30b9\u306e PC\/\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>lsass.exe \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u8a8d\u8a3c\u3057\u3066\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u30bf\u30b9\u30af\u3067\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3059\u3079\u3066\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30dd\u30ea\u30b7\u30fc\u3092\u8ffd\u8de1\u3057\u3001PC\/\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u306e\u4f7f\u7528\u4e2d\u306b\u767a\u751f\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30a4\u30d9\u30f3\u30c8\u306e\u30ed\u30b0 \u30a2\u30e9\u30fc\u30c8\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u30c7\u30d0\u30a4\u30b9\u306e\u9069\u5207\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u304c\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u8fd1\u3001\u591a\u304f\u306e Windows 11 \u30e6\u30fc\u30b6\u30fc\u304c\u300cLSASS.EXE\u300d\u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u3092\u5831\u544a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001Windows 11 \u3092\u4f7f\u7528\u3057\u3066\u3044\u3066\u3001lsass.exe \u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u3044\u554f\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u8a18\u4e8b\u3092\u8aad\u307f\u7d9a\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u4ee5\u4e0b\u3067\u306f\u3001lsass.exe \u3068 CPU \u4f7f\u7528\u7387\u304c\u9ad8\u3044\u554f\u984c\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u306e\u8cea\u554f\u306b\u56de\u7b54\u3057\u307e\u3057\u305f\u3002\u59cb\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span id=\"Is_lsassexe_a_virus\"><strong>lsass.exe \u306f\u30a6\u30a4\u30eb\u30b9\u3067\u3059\u304b?<\/strong><\/span><\/h3>\n<p>\u3044\u3044\u3048\u3001\u5143\u306e lsass.exe \u30d7\u30ed\u30bb\u30b9\u306f\u30a6\u30a4\u30eb\u30b9\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30d7\u30ed\u30bb\u30b9\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306b\u3088\u3063\u3066\u6539\u3056\u3093\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>lsass.exe \u306e\u5143\u306e\u5834\u6240\u306f<strong>C:\\Windows\\System32<\/strong>\u3067\u3059(C: \u304c\u30b7\u30b9\u30c6\u30e0 \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb \u30c9\u30e9\u30a4\u30d6\u306e\u5834\u5408)\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u30b7\u30b9\u30c6\u30e0 \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u4ee5\u5916\u306e\u5834\u6240\u3067\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u307e\u305f\u306f\u30a6\u30a4\u30eb\u30b9\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bf\u30b9\u30af \u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u3067 2 \u3064\u4ee5\u4e0a\u306e lsass.exe \u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u8907\u6570\u306e\u4e9c\u7a2e\u304c\u898b\u3064\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u305d\u306e\u30d5\u30a1\u30a4\u30eb \u30d1\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u307e\u305f\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\u3092\u3088\u304f\u4f3c\u305f\u3082\u306e\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u507d\u306e lsass.exe \u304c\u30a6\u30a4\u30eb\u30b9\u3067\u306f\u306a\u3044\u3068\u601d\u308f\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u507d\u7269\u306f\u30b9\u30da\u30eb\u30df\u30b9\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u30e6\u30fc\u30b6\u30fc\u3092\u3060\u307e\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4e0a\u306b\u9577\u671f\u9593\u653e\u7f6e\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u4e00\u822c\u7684\u306a\u30b9\u30da\u30eb\u30df\u30b9\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u3055\u3063\u3059\u3002 EXE<\/li>\n<li>lsassa.exe<\/li>\n<li>lsass.exe<\/li>\n<li>Isassa.exe<\/li>\n<\/ul>\n<h2><span id=\"How_to_Fix_LSASSexe_High_CPU_Usage_on_Windows_11\"><strong>Windows 11 \u3067 LSASS.exe \u306e\u9ad8\u3044 CPU \u4f7f\u7528\u7387\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/h2>\n<p>\u5143\u306e LSASS.exe \u30d5\u30a1\u30a4\u30eb\u304c CPU \u30ea\u30bd\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u624b\u9806\u306b\u5f93\u3063\u3066 CPU \u4f7f\u7528\u7387\u304c\u9ad8\u3044\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u5584\u306e\u3053\u3068\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<h3><span id=\"1_Restart_your_Windows_11_computer\"><strong>1. Windows 11 \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/strong><\/span><\/h3>\n<figure class=\"wp-block-image\"><img alt=\"\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u518d\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\" class=\"wp-image\" decoding=\"async\" height=\"571\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Restart-your-computer-1-14.webp\" title=\"\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u518d\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\" width=\"600\"\/><\/figure>\n<p>\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306e\u30d0\u30b0\u3084\u4e0d\u5177\u5408\u306b\u3088\u308a\u3001lsass.exe \u304c\u9069\u5207\u306b\u6a5f\u80fd\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u767a\u751f\u3059\u308b\u3068\u3001CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u30d0\u30b0\u3084\u4e0d\u5177\u5408\u3092\u53d6\u308a\u9664\u304f\u305f\u3081\u306b\u3067\u304d\u308b\u6700\u5584\u306e\u65b9\u6cd5\u306f\u3001Windows 11 PC \u3092\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u307e\u305f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u5b9a\u671f\u7684\u306b\u518d\u8d77\u52d5\u3059\u308b\u3053\u3068\u3082\u7fd2\u6163\u5316\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u30de\u30b7\u30f3\u304c\u51b7\u5374\u3057\u3001\u30e1\u30e2\u30ea\u304c\u89e3\u653e\u3055\u308c\u308b\u6642\u9593\u304c\u4e0e\u3048\u3089\u308c\u307e\u3059\u3002\u305d\u3053\u3067\u3001<strong>Windows 11\u306e\u96fb\u6e90\u30e1\u30cb\u30e5\u30fc\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001[\u518d\u8d77\u52d5]\u3092\u9078\u629e\u3057\u307e\u3059<\/strong>\u3002<\/p>\n<h3><span id=\"2_Run_a_full_Antivirus_Scan\"><strong>2. \u5b8c\u5168\u306a\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b<\/strong><\/span><\/h3>\n<p>\u4e0a\u3067\u8ff0\u3079\u305f\u3088\u3046\u306b\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u3068\u30a6\u30a4\u30eb\u30b9\u306f\u3001\u30de\u30b7\u30f3\u4e0a\u3067\u672c\u7269\u306e lsass.exe \u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u507d\u88c5\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001CPU \u4f7f\u7528\u7387\u3092\u4e0a\u6607\u3055\u305b\u308b\u30d7\u30ed\u30bb\u30b9\u304c\u6b63\u5f53\u306a\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5b8c\u5168\u306a\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3057\u3066\u3001\u3042\u3089\u3086\u308b\u7a2e\u985e\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u3092\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u691c\u51fa\u3057\u3066\u524a\u9664\u3067\u304d\u307e\u3059\u3002\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p>1. Windows \u30b5\u30fc\u30c1\u3067\u300cWindows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u300d\u3068\u5165\u529b\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u30ea\u30b9\u30c8\u304b\u3089<strong>Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30d7\u30ea\u3092\u958b\u304d\u307e\u3059\u3002<\/strong><\/p>\n<figure class=\"wp-block-image\"><img alt=\"Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\" class=\"wp-image\" decoding=\"async\" height=\"657\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-an-Antivirus-Scan-1-5.webp\" title=\"Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\" width=\"773\"\/><\/figure>\n<p>2. Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u958b\u3044\u305f\u3089\u3001[<strong>\u30a6\u30a4\u30eb\u30b9\u3068\u8105\u5a01\u306e\u4fdd\u8b77]<\/strong>\u30bf\u30d6\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30a6\u30a4\u30eb\u30b9\u3068\u8105\u5a01\u304b\u3089\u306e\u4fdd\u8b77\" class=\"wp-image\" decoding=\"async\" height=\"432\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Windows-Security-Exclusions-2-3.webp\" title=\"\u30a6\u30a4\u30eb\u30b9\u3068\u8105\u5a01\u304b\u3089\u306e\u4fdd\u8b77\" width=\"640\"\/><\/figure>\n<p>3. <strong>[\u73fe\u5728\u306e\u8105\u5a01]<\/strong>\u306e\u4e0b\u306b\u3042\u308b<strong>[\u30b9\u30ad\u30e3\u30f3] \u30aa\u30d7\u30b7\u30e7\u30f3<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<strong><\/strong><\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30b9\u30ad\u30e3\u30f3\u30aa\u30d7\u30b7\u30e7\u30f3\" class=\"wp-image\" decoding=\"async\" height=\"590\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-an-Antivirus-Scan-3-4.webp\" title=\"\u30b9\u30ad\u30e3\u30f3\u30aa\u30d7\u30b7\u30e7\u30f3\" width=\"654\"\/><\/figure>\n<p>4. <strong>[\u30d5\u30eb \u30b9\u30ad\u30e3\u30f3]\u3092\u9078\u629e\u3057\u3001 <\/strong><strong>[\u4eca\u3059\u3050\u30b9\u30ad\u30e3\u30f3]<\/strong>\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30d5\u30eb\u30b9\u30ad\u30e3\u30f3\" class=\"wp-image\" decoding=\"async\" height=\"432\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-an-Antimalware-Scan-4-3.webp\" title=\"\u30d5\u30eb\u30b9\u30ad\u30e3\u30f3\" width=\"640\"\/><\/figure>\n<p>\u305d\u308c\u3067\u304a\u3057\u307e\u3044\uff01\u3053\u308c\u3067\u3001Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30a2\u30d7\u30ea\u304c\u3059\u3079\u3066\u306e\u96a0\u308c\u305f\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u898b\u3064\u3051\u3066\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u304b\u3089\u524a\u9664\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u60aa\u610f\u306e\u3042\u308b lsass.exe \u30d5\u30a1\u30a4\u30eb\u304c\u3059\u3079\u3066 PC \u304b\u3089\u524a\u9664\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<h3><span id=\"3_Run_Rootkit_Scan_with_MalwareBytes\"><strong>3. MalwareBytes \u3092\u4f7f\u7528\u3057\u3066\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8 \u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b<\/strong><\/span><\/h3>\n<p>Windows \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f PC \u306e\u4fdd\u8b77\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u4e00\u90e8\u306e\u611f\u67d3\u30d5\u30a1\u30a4\u30eb\u306f\u4fb5\u5165\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8\u306e\u30ea\u30b9\u30af\u3092\u56de\u907f\u3059\u308b\u306b\u306f\u3001Malwarebytes \u3092\u4f7f\u7528\u3057\u3066\u30eb\u30fc\u30c8 \u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p>1. Windows 11 PC \u306b<a data-wpel-link=\"external\" href=\"https:\/\/www.malwarebytes.com\/\" rel=\"noopener nofollow external noreferrer\" target=\"_blank\"><strong>Malwarebytes\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/strong> <\/a><\/p>\n<figure class=\"wp-block-image\"><img alt=\"Malwarebytes\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\" class=\"wp-image\" decoding=\"async\" height=\"550\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Rootkit-Scanning-1.webp\" title=\"Malwarebytes\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\" width=\"800\"\/><\/figure>\n<p>2. \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3089\u3001Malwarebytes \u3092\u958b\u304d\u307e\u3059\u3002<\/p>\n<p>3. \u5de6\u5074\u306e\u30b5\u30a4\u30c9\u30d0\u30fc\u3067\u3001<strong>[\u8a2d\u5b9a]<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u8a2d\u5b9a\" class=\"wp-image\" decoding=\"async\" height=\"562\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-Rootkit-Scan-with-MalwareBytes-1.webp\" title=\"\u8a2d\u5b9a\" width=\"800\"\/><\/figure>\n<p>4. \u6b21\u306b\u3001<strong>\u300c\u30b9\u30ad\u30e3\u30f3\u3068\u691c\u51fa\u300d<\/strong>\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u5207\u308a\u66ff\u3048\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30b9\u30ad\u30e3\u30f3\u3068\u691c\u51fa\" class=\"wp-image\" decoding=\"async\" height=\"640\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-Rootkit-Scan-with-MalwareBytes-2.webp\" title=\"\u30b9\u30ad\u30e3\u30f3\u3068\u691c\u51fa\" width=\"545\"\/><\/figure>\n<p>5. [\u30b9\u30ad\u30e3\u30f3 \u30aa\u30d7\u30b7\u30e7\u30f3] \u3067\u3001[\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8\u306e\u30b9\u30ad\u30e3\u30f3] \u306e\u5207\u308a\u66ff\u3048<strong>\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<\/strong><\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u6709\u52b9\u306b\u3059\u308b\" class=\"wp-image\" decoding=\"async\" height=\"564\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-Rootkit-Scan-with-MalwareBytes-3.webp\" title=\"\u6709\u52b9\u306b\u3059\u308b\" width=\"800\"\/><\/figure>\n<p>6. \u6b21\u306b\u3001\u30e1\u30a4\u30f3\u753b\u9762\u306b\u79fb\u52d5\u3057\u3001<strong>\u300c\u30b9\u30ad\u30e3\u30f3\u300d<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30b9\u30ad\u30e3\u30f3\" class=\"wp-image\" decoding=\"async\" height=\"563\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-Rootkit-Scan-with-MalwareBytes-4.webp\" title=\"\u30b9\u30ad\u30e3\u30f3\" width=\"800\"\/><\/figure>\n<p>\u3053\u3053\u3067\u3001Malwarebytes \u306f\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8 \u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u30b9\u30ad\u30e3\u30f3\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001Malwarebytes \u306f\u691c\u51fa\u3055\u308c\u305f\u8105\u5a01\u3092\u5831\u544a\u3057\u3001\u305d\u308c\u3089\u3092\u524a\u9664\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5c0b\u306d\u307e\u3059\u3002\u30eb\u30fc\u30c8\u30ad\u30c3\u30c8\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n<h3><span id=\"4_Run_SFCDISM_Command\"><strong>4. SFC\/DISM\u30b3\u30de\u30f3\u30c9\u306e\u5b9f\u884c<\/strong><\/span><\/h3>\n<p>lsass.exe \u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u3082\u3046 1 \u3064\u306e\u4e3b\u306a\u7406\u7531\u306f\u3001\u30b7\u30b9\u30c6\u30e0 \u30d5\u30a1\u30a4\u30eb\u306e\u7834\u640d\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4e0a\u3067 SFC \u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u3092\u5b9f\u884c\u3057\u3066\u307f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p>1. Windows 11 \u306e\u691c\u7d22\u3067\u300c\u30b3\u30de\u30f3\u30c9 \u30d7\u30ed\u30f3\u30d7\u30c8\u300d\u3068\u5165\u529b\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u30b3\u30de\u30f3\u30c9 \u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3001<strong>[\u7ba1\u7406\u8005\u3068\u3057\u3066\u5b9f\u884c]<\/strong>\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u7ba1\u7406\u8005\u3068\u3057\u3066\u5b9f\u884c\" class=\"wp-image\" decoding=\"async\" height=\"548\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-as-administrator-1.webp\" title=\"\u7ba1\u7406\u8005\u3068\u3057\u3066\u5b9f\u884c\" width=\"640\"\/><\/figure>\n<p>2. \u30b3\u30de\u30f3\u30c9 \u30d7\u30ed\u30f3\u30d7\u30c8\u304c\u958b\u3044\u305f\u3089\u3001\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p> <code><strong>sfc \/scannnow<\/strong><\/code><\/p>\n<figure class=\"wp-block-image\"><img alt=\"sfc \/\u30b9\u30ad\u30e3\u30f3\u30ca\u30a6\" class=\"wp-image\" decoding=\"async\" height=\"272\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Corrupted-System-Files-1-4.webp\" title=\"sfc \/\u30b9\u30ad\u30e3\u30f3\u30ca\u30a6\" width=\"501\"\/><\/figure>\n<p>3. \u30b7\u30b9\u30c6\u30e0 \u30d5\u30a1\u30a4\u30eb \u30c1\u30a7\u30c3\u30ab\u30fc \u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u304c\u30a8\u30e9\u30fc\u3092\u8fd4\u3057\u305f\u5834\u5408\u306f\u3001\u3053\u308c\u3089 3 \u3064\u306e\u30b3\u30de\u30f3\u30c9\u3092 1 \u3064\u305a\u3064\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<p> <code><strong>DISM \/Online \/Cleanup-Image \/CheckHealth<\/strong><br \/>\n<strong>DISM \/Online \/Cleanup-Image \/ScanHealth<\/strong><br \/>\n<strong>DISM \/Online \/Cleanup-Image \/RestoreHealth<\/strong><\/code><\/p>\n<figure class=\"wp-block-image\"><img alt=\"SFC \u304a\u3088\u3073 DISM \u30b9\u30ad\u30e3\u30f3 3 \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\" class=\"wp-image\" decoding=\"async\" height=\"345\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Run-the-SFC-and-DISM-Scan-3-1.webp\" title=\"SFC \u304a\u3088\u3073 DISM \u30b9\u30ad\u30e3\u30f3 3 \u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\" width=\"605\"\/><\/figure>\n<p>\u305d\u308c\u3067\u304a\u3057\u307e\u3044\uff01\u3053\u308c\u3089\u306e\u30b3\u30de\u30f3\u30c9\u3092\u3059\u3079\u3066\u5b9f\u884c\u3057\u305f\u5f8c\u3001Windows 11 PC \u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001LSASS.EXE \u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u304c\u89e3\u6c7a\u3055\u308c\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<h3><span id=\"5_Update_the_Windows_operating_system\"><strong>5. Windows \u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u3092\u66f4\u65b0\u3057\u307e\u3059\u3002<\/strong><\/span><\/h3>\n<figure class=\"wp-block-image\"><img alt=\"\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u78ba\u8a8d\" class=\"wp-image\" decoding=\"async\" height=\"290\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Update-Windows-11-1-8.webp\" title=\"\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u78ba\u8a8d\" width=\"580\"\/><\/figure>\n<p>\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3053\u3068\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u65b0\u6a5f\u80fd\u3092\u697d\u3057\u3093\u3060\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u5165\u624b\u3057\u305f\u308a\u3001\u65e2\u5b58\u306e\u30d0\u30b0\u3084\u4e0d\u5177\u5408\u3092\u89e3\u6d88\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Windows 11 \u3092\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3053\u3068\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u826f\u3044\u7fd2\u6163\u3067\u3059\u3002 lsass.exe \u30d7\u30ed\u30bb\u30b9\u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u304c\u307e\u3060\u89e3\u6c7a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b Windows \u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u554f\u984c\u304c\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306b\u306f Windows 11 \u3092\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4fdd\u7559\u4e2d\u306e\u66f4\u65b0\u3092\u3059\u3079\u3066\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u306b\u306f\u3001<strong>[\u8a2d\u5b9a] &gt; [Windows Update] &gt; [\u66f4\u65b0\u306e\u78ba\u8a8d]<\/strong>\u306b\u79fb\u52d5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3><span id=\"6_Perform_a_System_Restore\"><strong>6. \u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\u3092\u5b9f\u884c\u3059\u308b<\/strong><\/span><\/h3>\n<p>\u4f55\u3082\u3046\u307e\u304f\u3044\u304b\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u6b21\u5584\u306e\u9078\u629e\u80a2\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u304c\u306a\u3044\u5834\u5408\u3001\u3053\u306e\u65b9\u6cd5\u306f\u5f79\u306b\u7acb\u3061\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u3059\u3067\u306b\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u306e\u307f\u3001\u3053\u306e\u65b9\u6cd5\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308b\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p>1. Windows 11 \u306e\u691c\u7d22\u3067<strong>\u300c\u56de\u5fa9\u300d<\/strong>\u3068\u5165\u529b\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u8a2d\u5b9a\u306e\u30ea\u30b9\u30c8\u304b\u3089\u56de\u5fa9\u30a2\u30d7\u30ea\u3092\u958b\u304d\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u56de\u5fa9\" class=\"wp-image\" decoding=\"async\" height=\"511\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Recovery-1-4.webp\" title=\"\u56de\u5fa9\" width=\"600\"\/><\/figure>\n<p>2. \u56de\u5fa9\u30a2\u30d7\u30ea\u304c\u958b\u3044\u305f\u3089\u3001[<strong>\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\u3092\u958b\u304f]<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u30aa\u30fc\u30d7\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\" class=\"wp-image\" decoding=\"async\" height=\"337\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Recovery-2-4.webp\" title=\"\u30aa\u30fc\u30d7\u30f3\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\" width=\"700\"\/><\/figure>\n<p>3. [\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143] \u30c0\u30a4\u30a2\u30ed\u30b0 \u30dc\u30c3\u30af\u30b9\u3067\u3001<strong>[\u5225\u306e\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u3092\u9078\u629e\u3059\u308b] \u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/strong><\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u5225\u306e\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\" class=\"wp-image\" decoding=\"async\" height=\"410\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Recovery-app-1-4.webp\" title=\"\u5225\u306e\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\" width=\"500\"\/><\/figure>\n<p>4. \u6b21\u306b\u3001\u554f\u984c\u304c\u6700\u521d\u306b\u73fe\u308c\u308b\u524d\u306b\u4f5c\u6210\u3055\u308c\u305f\u5fa9\u5143\u30dd\u30a4\u30f3\u30c8\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u9078\u629e\u3057\u305f\u3089\u3001<strong>\u300c\u6b21\u3078\u300d<\/strong>\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u6b21\" class=\"wp-image\" decoding=\"async\" height=\"412\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Recovery-app-2-4.webp\" title=\"\u6b21\" width=\"500\"\/><\/figure>\n<p>5. \u78ba\u8a8d\u753b\u9762\u3067<strong>\u300c\u5b8c\u4e86\u300d<\/strong>\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"\u4ed5\u4e0a\u3052\u308b\" class=\"wp-image\" decoding=\"async\" height=\"411\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2024\/02\/Recovery-app-3-4.webp\" title=\"\u4ed5\u4e0a\u3052\u308b\" width=\"500\"\/><\/figure>\n<p>\u305d\u308c\u3067\u304a\u3057\u307e\u3044\uff01\u3053\u308c\u306f\u3001Windows 11 \u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3092\u5fa9\u5143\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u308c\u3089\u306f\u3001lsass.exe \u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u3044\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u3044\u304f\u3064\u304b\u306e\u6700\u826f\u306e\u65b9\u6cd5\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u65b9\u6cd5\u3092\u614e\u91cd\u306b\u5b9f\u884c\u3057\u3066\u3044\u308c\u3070\u3001lsass.exe \u306e\u9ad8\u3044 CPU \u4f7f\u7528\u7387\u306f\u3059\u3067\u306b\u89e3\u6c7a\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 Windows 11 \u306e lsass.exe \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u30d8\u30eb\u30d7\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u304a\u77e5\u3089\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Windows \u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30bf\u30b9\u30af \u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306b\u300cLsass.exe\u300d\u30d7\u30ed\u30bb\u30b9\u304c\u3042\u308b\u3053\u3068\u306b\u6c17\u3065\u3044\u305f\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 LSASS (Local Security Authorization Subsystem Service) \u306f\u3001Windows \u30d9\u30fc\u30b9\u306e PC\/\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002 lsass.exe \u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u8a8d\u8a3c\u3057\u3066\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u30bf\u30b9\u30af\u3067\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3059\u3079\u3066\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30dd\u30ea\u30b7\u30fc\u3092\u8ffd\u8de1\u3057\u3001PC\/\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u306e\u4f7f\u7528\u4e2d\u306b\u767a\u751f\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30a4\u30d9\u30f3\u30c8\u306e\u30ed\u30b0 \u30a2\u30e9\u30fc\u30c8\u3092\u751f\u6210\u3057\u307e\u3059\u3002 \u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u30c7\u30d0\u30a4\u30b9\u306e\u9069\u5207\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u304c\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u8fd1\u3001\u591a\u304f\u306e Windows 11 \u30e6\u30fc\u30b6\u30fc\u304c\u300cLSASS.EXE\u300d\u306e CPU \u4f7f\u7528\u7387\u304c\u9ad8\u304f\u306a\u308b\u554f\u984c\u3092\u5831\u544a\u3057\u3066\u3044\u307e\u3059\u3002 \u3057\u305f\u304c\u3063\u3066\u3001Windows 11 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