GPEDIT.MSC is not accessible with admin privileges

gpedit.msc is not accessible even with administrator account.

1. Open “Run” & enter %systemroot%\system32\GroupPolicy\User
2. Delete registry.pol (if it exists).
3. Go to %systemroot%\system32\GroupPolicy\Machine and delete registry.pol (if it exists).
4. Reboot your system.
5. Log in using your administrator account & create a new administrator account.
6. Reboot the computer & login as under new administrator account.
7. Open “Run” & enter gpedit.msc
8. Go to “Local Computer Policy” → “User Configuration” → “Administrative Templates” → “system” → “Run only specified Windows applications” (as shown below) & disable it.

9. Run gpupdate /force and login with your old administrator account.