Hello, Haydn Webb
Welcome to Microsoft Community.
I’m really sorry to hear about the trouble you’re having with the recent updates. It must be incredibly frustrating, especially when it disrupts your work. Have you tried uninstalling updates KB5042099 and KB5041585 through Windows settings > Windows Update > Update History? Does the issue still persist after that?
Also, one of the most common causes for blue screens and crashes is outdated or corrupted drivers. When Windows updates, the drivers need to be updated too to maintain compatibility. Have you checked for driver updates on the manufacturer’s official website?
If the crashes continue, you can collect the dump files, upload them to a cloud storage service, and share the link with me. I’ll do my best to help figure out the cause. Dump files are logs that record what happens when Windows crashes. Here’s how you can collect them:
BSOD Finding and fixing them - Microsoft Community
Yuhao L
Microsoft Community Technical Support