kaspersky plus Microsoft .net failed to initialize

[PH97]

My family has been using Kaspersky for years and there were no problems. But after updating our family's subscription yesterday Kaspersky Plus is no longer launching on my PC.

I gives me an error message about "Microsoft .net failed to initialize" which started today. Never had this issue before. There were some "The prior start of the program failed, do you want to send a report." message and i did send reports but nothing ever came from this. Today Kaspersky Plus does no longer launch at all. It keeps crashing during the launch process.
I know there is a multitude of different posts about this issue over the years but NONE of the solutions there did jackshit for me.
I'm on Windows 11 Version 25H2. My computer is the only Windows 11 one and the only one with this issue.

I tried the repair tool for Microsoft .net which didn't help.
I tried reinstalling Microsoft .net which didn't help.
I tried installing other versions  which didn't help.
Nothing does anything. And the ONLY programm with this issue is Kaspersky...

[Berny]

@PH97 Welcome on the K Forum.

Did you read this Kaspersky FAQ  https://support.kaspersky.com/de/common/error/installation/11682#block2 ?