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この項目のプロパティは利用できません

Last updated at Posted at 2018-03-21

ある日突然Cドライブのプロパティが見れなくなりました。
Cドライブ→右クリック→プロパティ
「この項目のプロパティは利用できません」のエラーメッセージが表示される。
最終的にはレジストリを弄って解決しました。

実行する前に
HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers
をバックアップすること!

以下のコードをテキストエディタに張り付けて.regファイルに保存して実行すればOK。

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers]
@="{5F5295E0-429F-1069-A2E2-08002B30309D}"

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\Sharing]
@="{f81e9010-6ea4-11ce-a7ff-00aa003ca9f6}"

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{1f2e5c40-9550-11ce-99d2-00aa006e086c}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{4a7ded0a-ad25-11d0-98a8-0800361b1103}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{55B3A0BD-4D28-42fe-8CFB-FA3EDFF969B8}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{596AB062-B4D2-4215-9F74-E9109B0A8153}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{5F5295E0-429F-1069-A2E2-08002B30309D}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{7988B573-EC89-11cf-9C00-00AA00A14F56}]
@=""

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{ECCDF543-45CC-11CE-B9BF-0080C87CDBA6}]

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{ef43ecfe-2ab9-4632-bf21-58909dd177f0}]
@=""

[HKEY_CLASSES_ROOT\Drive\shellex\PropertySheetHandlers\{fbeb8a05-beee-4442-804e-409d6c4515e9}]
@=""

ここを参考しました。
https://answers.microsoft.com/en-us/windows/forum/windows_10-hardware-winpc/cannot-access-hard-drive-properties-in-windows-10/28d3d187-ef0a-4f5b-83eb-199aacf001f0

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