windows 11 startup messed up by latest cumulative update

Hi,
trying to get some help here since MS helpdesk was not able to

I am running windows 11 pro 64bit
a few days ago, got a pushy notification for a cumulative install
let it run/restart and then can't log in anymore
- I took my pc from MS account ( probably a mistake), but the issue here is that does not recognize the pin or password for the MS account. It shows wi-fi connection, and tried with ethernet cable and from phone hotspot, it sees the network and I can change it, but then wafter typing pswrd says it can't find a connection

Dell repairs says there is an issue with a partition, but code provided is wrong ( can't find it on Dell database) - and can't fix it

- the most insane part is that it's not connecting to any network, BUT when using Dell built-in repair tools, it actually transmits and receives data.
so, maybe it's an issue with networks settings...?
any ideas to fix this?
Thanks