Thanks everyone, I'm amazed by the quick reply's.

The re-install looks a bit complicated (Kleopatra etc.), so I'll do it later and really take some time for it to do it right.

* When I try to uninstall Electrum  (99,1 MB), I get the following message (translated): "Can't find the file C:\Program Files (x86)\Electrum\Uninstall.exe.
Control the name and try again."
So: I can't find/open the app ánd I can't uninstall it.

Answers to comments:

- I have Windows 11.
- When I click on the file 'electrum-4.2.2.exe', a 'loading' circle appears but nothing happens.
- Seed phrase is 100% safe, I wrote it down a few years ago. Not digital.

It would be helpful for me if this topic stays open / unresolved for a few more days so I have time to implement the solution (download Electrum).