https://4sysops.com/archives/restore-classic-context-menu-in-windows-11-explorer-using-group-policy-or-powershell/

reg add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /ve /t REG_SZ

Get-Process explorer | Stop-Process -ErrorAction Ignore