: This long string of numbers is the unique identifier for the classic context menu.
Possible reasons (malicious or legitimate): : This long string of numbers is the
reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /d "" /f you effectively nullify the modern handler
entry for this CLSID. By creating this key and leaving the default value blank, you effectively nullify the modern handler : This long string of numbers is the