Restore OPEN option in Disk Drive menu

1: Open folder options and select the "file types" tab

2: select Drive and click advanced(i know you know these basic steps but these are for those who don't know these)

3: create a new operation (its going to be a dummy operation so you can give it any name..for example call it abc and in the application used to perform action space, browse and give the path of explorer.exe

4: after clicking ok,set this new abc action as the default action and hit ok..

5: now you can check .. if this new operation is opening the contents of the drive in a different window then you're ready to go..

6: now........open the registry editor(type regedit in start menu->run) and hit ok

7: navigate to the key HKEY_CLASSES_ROOT\Drive\shell

8: here you'll see all the drive related actions..you should now delete the latest abc action key by right clicking on it and clicking delete!!

9: by doing this the default open action will automatically be restored..and..you're done!

you can also do the same to the directory actions by navigating to the key HKEY_CLASSES_ROOT\Directory\shell ..