SupportAssistant BSOD in Win11

Hi,

around a week ago SupportAssist (SA) had an update (3.10.3.3) and i wanted to install it. After a while, it resulted in an error, saying i should reboot and try again. Said and done, now SupportAssistant wont start up correctly and repeatedly show "please restart and try again". When i try to uninstall SA i get a bluescreen with "REFERENCE_BY_POINTER". Trying to repair SA, same result. Downloading SA and install -> Same result.

I then uninstalled DELL  Command Update and reinstalled that one (worked with an message saying "An SupportAssistant installation is suspended, need to revert changes -> yes"). Now i could Update at least iRST (Intel Rapid Storage Technology). After reading something about this causing BSOD, i tried again installing SA but it results again in an BSOD.

Now i packed out GeekUninstaller and manually deleted SupportAssistant (Files in C:\Programms and over 11k Registry-Entrys). Now SupportAssist is like uninstalled. But trying to install it again just results in the same Error i received when i tried to initially update to 3.10.3.3.

Anyone got an idea how to fix SA?

My machine:

Dell XPS 15 9510 with Win11