Won’t close

I tried to close it out several times, but the buttons don’t seem to appear or work, if I use a keyboard shortcut, same thing happens, and an annoying “you can’t do that” sound repeats. Can’t restart the computer because it’s open, can’t delete it because it’s open, the file doesn’t extract, and I can’t minimize it.

Please fix this.

User 000000000001 about RAR Extractor - Unarchiver