7.0.9 problem with uninstall

I am kindly asking for help, I think I messed up.
I’m using Client 7.0.9 and wanted to uninstall to later install on a new path.
So I opened my windows Programms an startet the uninstall. I’m now sitting here with an open window saying “Please wait while windows configured Seafile 7.0.9” an a cancel button.
Nothing happened the last 20 Minutes.