Win7, VirtualBox - Disable Time Sync.

Step-1: On Virtual Machine Windows 7.


Step-2: Edit windows register. Command: regedit.exe

Step-3: Find out the parameter file.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\VBoxService

Step-4: Modify ImagePath to "%SystemRoot%\System32\VBoxService.exe -disable-timesync".

Step-5: Reboot Windows 7.