- no RDP
- If Virtual you can detach the volume and attached to recover
https://repost.aws/knowledge-center/ec2-windows-troubleshoot-reboot-loop - You can also try
https://www.dell.com/support/kbdoc/en-uk/000202880/how-to-fix-no-boot-after-windows-updates
- RDP working
dism.exe /image:C:\ /cleanup-image /revertpendingactions
DISM /Online /Cleanup-Image /RestoreHealth