Hey youaretocute,
Are you getting any error messages at all when this happens, or is the game just sending you back to desktop without any notification? Are you able to grab a screenshot if any error messages are appearing?
Repairing and reinstalling the game are usually pretty good steps, but if that doesn't do the trick there may be something else conflicting with the game or anticheat launching. This is often a conflicting antivirus or security program, but I'd definitely try going through these steps to see what else you're able to check on your system.
If you're still running into trouble after that, please grab us a Dxdiag as that will give us a bit more information about what could be causing this, thanks!