Spotify won't start

[Robin66]

So im using Windows 10 and never had any problems until a few days ago when Spotify wouldn't start as usual. When I click the icon, nothing is happening, no window, no crash report, not even a notiofication in the task manager.

What I already tried:

- Restart the computer

- Reinstall Spotify

- Clean reinstall of Spotify (as many solution feeds say)

- tried to launch the original .exe

- tried to start it from task manager (couldn't find it there anywhere)

I tried pretty much everything I could find on any plattform.

On my iPhone its still working but the same day as it stopped working on my computer it also stopped working on my Google Cast (like Alexa but from Google).

Please send help!