Hangs on start-up

Please tag your post with #pc and/or #xbox.
PC
Are you on Steam or Microsoft Store version?
Microsoft Store
Are you using Developer Mode or made changes in it?
no changes
Brief description of the issue:

MS hangs on the page with the music on start-up
I installed it a few weeks ago and it worked fine
I did not install anything prior to the issue
How do I re-install?

Thanks

I had to reinstall MSFS. The cause is unknown