I wrote "Surveillance Screen Time Synchronization Calibration" [ reading ] before, and a friend asked that it was not successful under win10. I happened to check the time at the customer's place today, and found that there are indeed some problems with enabling the time server under Win10. Now sort out the correct steps I have verified:
1. Modify the registry
Start→Run→regedit→Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer→Enabled changed to "1"
2. Register
Start→Run→regedit→Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config→AnnounceFlags changed to "5"
3. Enable the service
Start→Run→services.msc→Windows Time→Modify the startup type to "Automatic" and start the service
4. Verification
If you still have questions, please leave a message.