If you are not able to manually change time in Windows 11/10, restart Windows Time Service, use Terminal to change time & ...

Other reasons for the same include corrupted Windows Time DLL file, issues with the Windows Time Service (W32Time.exe) process, and a drained CMOS battery. What is the problem with dual boot?

The Windows Time service is responsible for maintaining the synchronization process with time servers. If this service is not functioning correctly, it can cause the time synchronization to fail.

Perhaps a failing CMOS battery?<BR><BR>That said, you could run CmdTime via Scheduled Tasks.<BR><BR>I think the Windows Time Service in XP is always slow feeling, no matter what server I use.