# Windows Patching > [!Warning] > A required reboot may be discovered during a scan cycle, which in turn triggers the reboot policy. An apply cycle does not need to be run for a reboot to occur.^[https://ninjarmm.zendesk.com/hc/en-us/articles/207437143-Windows-Patch-Management-and-WSUS-Server-Setup] - I've noticed that if a user is signed in but locked it may still prevent OS updates, even on a server.![[Pasted image 20250606083229.png]]