How to unlock Registry Editor

  
under Win10 system
Workaround
1. From the "Start" menu, enter "<;Gpedit.msc” (without quotes), click “ Confirm the ” button to open the “Group Policy” dialog.
2. From the left column, select “User Configuration”—“Administrative Templates”—“System” items.
3. Double-click "Allow access to the registry editing tool" in the right column, set to not configured.

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