I've done a lot of searching on this issue, found several articles, tried some solutions: Nothing works. The Windows Time service just fails to start at boot. It doesn't produce an error in the event logs; it just fails to start. But I can manually start it from Services. Or I can manually run the CMD program mentioned below and it starts without error. Suggestions from other articles which have made no difference:Confirmed the permissions on the W32TIME keys in regedit.Changed the logon from "Local Service" to "NT AUTHORITY\Local Service".Changed it from Manual to Automatic start. My own ideas:Edited the Recovery settings to add a 3rd step to run a CMD program that does "sc start W32TIME".Added a short-cut to that same CMD program in the Startup folder (which is set to run as admin). Other ideas?