Undo Windows Update ((new))

This buys you time to wait for Microsoft to release a fix for the buggy update before it tries to install again.

Before uninstalling any update, try a simple (disabling non-Microsoft startup services) to confirm the update is the true cause. Then, uninstall using Method 1. If you're within the first 48 hours of a bad update, also pause updates for 14 days to give Microsoft time to release a fix. undo windows update

This works even if you cannot log into Windows. This buys you time to wait for Microsoft