Stay safe — and always validate registry modifications, especially those involving COM objects.
This command adds a registry key that tells Windows how to instantiate a COM class identified by a specific CLSID.
Copy and paste the following command and press : reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /f Stay safe — and always validate registry modifications,
: Forces the operation without prompting for confirmation. How to Apply the Fix (Step-by-Step)
reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /d "" /f Use code with caution. How to Apply the Fix (Step-by-Step) reg add
For the changes to take effect, you must restart the Windows Explorer process: Task Manager Ctrl + Shift + Esc Windows Explorer in the "Processes" tab. Right-click it and select WinTips.org
What the command appears to be
Locate in the processes list, right-click it, and select Restart .
However, Windows prioritizes user-specific definitions inside HKCU over global machine rules. When you add the 86ca1aa0-34aa-4e8b-a509-50c905bae2a2 key to HKCU and define its default value as completely empty data, you trigger a silent fallback mechanism. File Explorer attempts to process the modern context menu, reads the blank user-level key, throws a standard REGDB_E_CLASSNOTREG (Class Not Registered) error behind the scenes, and safely defaults back to the legacy Windows 10 context menu system. Step-by-Step Implementation Guide Method 1: Using the Windows Command Prompt (Fastest) reads the blank user-level key