1. Set HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\Type to NTP

2. Set HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlags to 5

3. Set HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\NtpServer to 0.oceania.pool.ntp.org,0x1

4. Run net stop w32time

5. Run net start w32time