Unity crashes on code compilation

Hey,
Unity keeps crashing whenever it attempts to compile my code. I get a wide range of different errors. Doesn’t appear to be any errors in my code (upon restarting Unity after crash it runs fine…for a couple minutes)
Checking the error logs I get missing stack traces or any of the following:

(Typical hour of attempting to use Unity)

14:48 - Clicking play in the editor
RtlLookupFunctionEntry returned NULL function. Aborting stack walk.

15:01 - Clicking play in the editor
KERNELBASE.dll caused an Unknown exception type (0xe0000001)
in module KERNELBASE.dll at 99e64f69.

15:15 - Navigating to Unity
Unity.exe caused an Access Violation (0xc0000005)
in module Unity.exe at 01e24b65.

15:27 Clicking play - ? No idea

15:52
KERNELBASE.dll caused an Unknown exception type (0xe0000001)
in module KERNELBASE.dll at 99e64f69.

Unity Version 2021.1.16f
Visual Studio 2019

I’ve repaired my registry files + .dlls, uninstalled, reinstalled Unity, updated all packages etc etc I have no idea what else to try. I can’t file a bug report as that also crashes and creates a 6GB .txt file on my hard drive…

Any help would be massively appreciated.

Update: Rollback my version of Unity to 2020.3.25f1…still crashing.
Thought maybe the bug report would work as I’m now running an LTS version, didn’t. Seemed to want to create 3 files, two equalling 6GB, ran out of disk space on the third try then crashed again.
Anyone have any ideas? Running out of options.
191147-unitybugreportdump.jpg