We are sorry to hear you are having trouble. We would request you to please try the below steps and let us know if that works-
1. Try creating a new user account on your machine and then try to launch XD. If it works, go to the previous account-.
2. Signout of Creative Cloud Desktop app
3. End all all Creative Cloud desktop app process from task manager.
4. Uninstall Creative Cloud Desktop app.
4. Restart the machine.
5. Install Creative Cloud, XD.
Please let us know if you need more assistance on this. We'd be happy to help.
We're so sorry to hear about the trouble. In addition to what Chethan suggested, please try the suggestions shared in this discussion and let us know if this helps or if you need any further assistance.