When I downloaded Powder Toy 98.0 Beta, everything was fine, but when I upgraded to 98.0 Stable today, Powder started uninstalling itself a few seconds after launching. When I try to unpack the archive with the game again, the archiver gives the message "Access Denied" and only the folder with the text files readme.txt and license.txt are unpacked, but the game itself is not. The game is unpacked only if I unpack it to another folder, but when I run it again, the game is deleted again by itself and I can no longer unpack the game to this folder.

Tried to check the archive with the game for viruses. There are no viruses. Scanned the whole computer, no viruses either. The problem started appearing as soon as I updated Powder, and only if the computer is connected to the internet. If I restart the computer without being connected to the internet, the game unzips to any folder again, runs and does not uninstall. But as soon as I connect the computer to the internet and start Powder, it uninstalls itself again and I can no longer unzip it to the folder from which the game was deleted.

What is going on? How can I fix it?

Windows 7 Ultimate 32-bit.

Adding the game to the antivirus exclusion helped fix the problem. Thank you!

Now I tried to remove Powder from the antivirus exceptions and the antivirus stopped deleting it, although in the morning it was deleting it without even warning me about it. Probably the antivirus company made some mistake, which was promptly corrected and now the antivirus does not delete the game.

And yes, my antivirus, when it checks files, accesses not only the local virus database, but also some cloud on the internet. Kind of like it goes to the cloud when it has suspicions about the cleanliness of a file, but doesn't have the necessary information in the local virus database.