It is not possible to reinstall the game.

The problem is as follows: I needed to free up space on the disk. The game was the first to be removed. However, I couldn't delete it using the standard method. The following message appeared (Error during support file extraction: catastrophic failure, attached to the message). The same thing happened when I tried to remove the Hammers of Fate expansion. The original game was deleted without any problems. After resolving the computer issues (which couldn't possibly affect the game), I decided to reinstall the game. I launched the installation of the original game, and it seemed to work. Then I decided to install the expansions, and the following error occurred (image: Error during installation 2). I decided to fix everything using the old method: delete all folders on the disk and clean the registry using CCleaner. It didn't help. I can still only delete the first part; the other two cannot be deleted and remain in the list of removed programs. I'm using Windows 10 Home. I haven't tried any other solutions.