Could you tell us how your first attempt went? You wrote, "Demontazed all parts for 100%, restored all doors and etc, cleaned all junks, but I can't to finish renovation." So, when you had everything at 100%, did you approach the computer to finish the car restoration, but couldn't do it?

Did you try saving and resetting the game?

There is no option to reset this mechanic. If reloading the game doesn't help and you still can't finish the restoration on the Computer, we'll need to take your game save and fix it.

Are you sure you're using the computer by the stand where we place the restored parts?