The risk of security breaches, update failures, audit findings, and legal liability dwarfs any short-term cost savings.

After reboot, check:

Possible, if you accept the risks. Use snapshots, never expose the server to the internet, and treat the patched server as ephemeral. Many homelab enthusiasts successfully patch Windows Server 2022 but remain ready to redeploy from scratch.

In previous versions of Windows Server, the patch often involved changing a jne (jump if not equal) instruction to a jmp (unconditional jump) or a sequence of nop (no operation) instructions.

net stop TermService /y