I been battling with this issue since yesterday, and I think today i eventually seemed to have resolved the issue. All the standard resolutions provided did not work - i.e. going to folders in the local data and clearing them out, did a reinstall as well, disable all overlays, etc. Did all the windows healthchecks as well (SFC /Scannow and DISM /Online /Cleanup-Image /RestoreHealth, did the steam installation validation around 10 times or more since yesterday.
I checked the event viewer on windows which was showing alot of live kernel events and also some crashes on redlauncher (Steam version) and some of it related to trying to access memory locations that its not supposed to be accessing
Eventually, what I did today was:
1. Used a .net installation repair tool.
2. uninstalled the latest VC Redistributable for x86 and x64 (think i had the 2015 - 2022 version. Downloaded and then reinstalled the latest version. 3. Since i am running a Radeon 7900XT, i updated the drivers to the latest version available, which currently is 25.6.3 (despite it still having the known issue of cyberpunk crashing).
4. Rebooted my machine, and went into the bios and switched off the XMP Memory profile (and i think this is what did it)
I didnt individually test each item above - i was at a point where i was just so annoyed with a game that was working fine to suddenly stop working without warning - I did all at once and after booting back up into windows, the now no longer flatlined!!! I have been playing now for the past 2 hours or so and have not experienced a crash - as yet (hoping that I wont).
Hope the above will help somebody - my system specs is Ryzen 7 5800X3D CPU, 32gbs of Ram, XFX 7900XT.