BitTorrent not opening.

[LLL]

So BitTorrent wasn't opening automatically when I tried to add a torrent file. I tried to manually open it; nothing. It showed up in Task Manager (one instance for every attempt to open) but nowhere else. I restarted my computer, uninstalled everything (checked appdata etc.) and downloaded the installer again. When I open the installer and click run, I get the same result: nothing. It loads for a bit, shows up in the Task Manager, but doesn't open at all.

So now I don't even have it on my computer, and apparently can't even reinstall it.

Any ideas?

Edit: Same thing is happening with uTorrent installer. I can't think of a single thing I changed on my computer since yesterday.