If that did not help then try making sure in your permissions are correct on the data and uploads directories and cmd.exe make sure IWAM and IUSER accounts have READ WRITE EXECUTE permissions.
The above two things should have helped if permissions are correct. Otherwise you would need to go with GD2
If that did not help then try making sure in your permissions are correct on the data and uploads directories and cmd.exe make sure IWAM and IUSER accounts have READ WRITE EXECUTE permissions.
Are you referring to cmd.exe in C:\Windows\System32? What should the permissions be set to?