86ca1aa0-34aa-4e8b-a509-50c905bae2a2 Inprocserver32 F Ve - Reg Add Hkcu Software Classes Clsid

This means the parent key doesn’t exist. You may need to create it first (though reg add creates intermediate keys by default if using /f ).

This command (the one used in Windows 10). This means the parent key doesn’t exist

reg add hkcu\software\classes\clsid\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\inprocserver32 /f /ve /t REG_SZ /d "C:\LegacyApps\oldscanner.dll" This means the parent key doesn’t exist

: It is incredibly easy to undo if you change your mind. How to Undo the Change This means the parent key doesn’t exist

HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4E8B-A509-50C905BAE2A2\InprocServer32

reg add HKCU\Software\Classes\CLSID\86CA1AA0-34AA-4E8B-A509-50C905BAE2A2\InProcServer32 /ve /t REG_SZ /d "" /f