Open Command Prompt and run bellow command. and reboot the computer or go to task manager and restart “windows explorer” process

To Get Old Context Menu:

reg.exe add “HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32” /f /ve

If you need to get back the New Context Menu:

reg.exe delete “HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}” /f