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I've been having trouble with the time on my Windows 10 PC. I've googled several different solutions. The first one I tried said to do a

w32tm /unregister
w32tm /register

When I did the second command, it said something like "Service has been marked for deletion".

Now if I do anything involving w32tm or W32Time, I get some variant of "The specified service does not exist as an installed service".

How do I re-install the time service without re-installing Windows?

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  • Do you have an application running that locks the Service Manager? Stuff like Process Explorer. – Daniel B Aug 2 '17 at 11:30
  • Have you tried rebooting then running those commands again? – I say Reinstate Monica Aug 2 '17 at 12:12
  • Daniel B - I am not running any thing that locks the service manager that I know of (definitely not Process Explorer). I did install CrashPlan about a month ago. – daveh551 Aug 2 '17 at 20:37
  • Twisty - I tried running commands again, but I have not tried rebooting. I'll do that as soon as I finish what I'm doing. Thanks for the suggestion. – daveh551 Aug 2 '17 at 20:37
  • Twisty - that seems to have done it. I rebooted, re-ran the "w3tm /register" command, and did a "net start w32time". It seems to be running again. Thanks for your help. – daveh551 Aug 3 '17 at 10:14
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Yes, this service is not found in "Turn Windows features on & off" or any other place. But the command you gave:

w32tm /register

Is the actual way to install it (using a command prompt which was Run as Administrator). Sometimes you need a reboot to put things in order, but I actually just waited a while without rebooting. Here is my sequence of commands showing that it works:

(base) C:\WINDOWS\system32>w32tm /config /update
The following error occurred: The specified service does not exist as an installed service. (0x80070424)

(base) C:\WINDOWS\system32>w32tm /register
W32Time successfully registered.

(base) C:\WINDOWS\system32>w32tm /query /source
The following error occurred: The service has not been started. (0x80070426)

(base) C:\WINDOWS\system32>net start w32time
The Windows Time service is starting.
The Windows Time service was started successfully.

(base) C:\WINDOWS\system32>w32tm /query /source
Local CMOS Clock
0

Follow commands to start w32time and resync windows time: Must be run as administrator

w32tm /unregister
w32tm /register
net start w32time
w32tm /resync
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  • You can use this batch script for resync the Windows time every start up. – Sergio Perez Jan 1 at 20:53
  • The OP clearly stated that they tried the unregister/register commands already and were receiving errors when they did so. The answer already given covers this. – Karu Jan 1 at 20:57
  • /resync is not described in the "Tomasz Gandor" answer, which is the only other answer at this point. – plasmo Mar 31 at 23:53

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