I tried to verify steam cache and it didn't worked. I also reinstalled.
I removed run as admin and it didn't worked.
I don't think I modified ugridstoload. Where is this option ? I can't find it in any .ini.
I had the same problem, but first to the .ini and ugridstoload. If you don't have that line, it seems you haven't used it yet. If you use the ugrid settings, you would have to add that line to your ini manually, so you shouldn't worry about that.
As to getting your game to run again, the following solution worked for me:
- Open Steam
- Right Click on Skyrim, select properties
- Select Local Files tab, verify game cache
(so basically doing what the sticky post recommends first)
So much for the standard process, but that didn't work for me at first. If above still doesn't let you run the game:
- make a copy of your skyrim.ini and SkyrimPrefs.ini, then delete the originals.
- Re-validate the game cache via Steam (again). Deleting the files and verifying seemed to trigger a steam download for me, after that, the launcher worked again.
- Basically, try to force steam to download Skyrim files. Perhaps try backing up your tesv.exe and/or skyrimlauncher.exe (rename it) and then do the validation steps again. Steam hopefully will initiate a download of the missing file(s). After the download is complete, try again. (I got a download of about 50 MB in total, after that, everything worked again).
- Restore the .ini entries you had before (if you had made any).
Hope you'll get the game running again!