I know this question is unmistakably generic, sorry for that. Sadly PS stopping to function does not come with a simple "Powershell stopped working, here's why." kind of error. So at the moment I can only use cmd. The error occurs for both classic PS and PS7/PS Core.Here is the screenshot. This sounds like a systemic error to me.
Any tips/hints are appreciated.
Edit: sorry, I'm not used to ask questions here. I tried re-installing powershell from zip, and msi, no success.