The fix for those Dell shutdowns is here: Microsoft's out-of-band KB5121767 explained

A few days ago we wrote that Microsoft had blocked July's Windows update on certain Intel-based Dell laptops after it triggered unexpected shutdowns, overheating and faster battery drain. The repair has now landed. On July 18 Microsoft released an out-of-band update, KB5121767, that fixes the driver clash behind the mess.

The problem came from a new USB-C Connection Manager component in Windows fighting with Intel's Innovation Platform Framework driver - the bit that manages power and heat - on some Dell machines. KB5121767 settles that fight. It arrives as OS build 26100.8894 on Windows 11 24H2 and 26200.8894 on 25H2, and because it's cumulative it also carries July's security fixes, so you aren't choosing between "safe" and "stable."

Here's the practical bit. If your Dell was one of the machines held back, open Settings → Windows Update, click Check for updates, and install KB5121767 (it's in the Microsoft Update Catalog too if you'd rather grab it by hand). If July's update installed on your PC without any drama, you almost certainly weren't affected and don't need to go hunting for this one - Microsoft aimed it squarely at the devices that were misbehaving.

A driver mismatch caused all of this, which is a good reminder to keep them current. Tendvane's driver Auto-Update flags out-of-date Dell and Intel drivers, and its check-for-updates confirms whether the month's Windows update actually reached your machine or is still being held back.