• Login to the VPSBlocks portal and go to VPS Management
• Select the Windows Standard 2012 Server DVD
• Load the console on a separate browser window
• Reboot the server, and in the console make sure you press a key to boot from the DVD
• From the Windows Setup menu, click "Next".
• Select "Repair your computer".
• Click on "Troubleshoot".
• Under Advanced options, click "Command Prompt".

At the command prompt, run the following commands:

c:
cd Windows\System32
ren Utilman.exe Utilman.exe.old
copy cmd.exe Utilman.exe

• Close the command prompt, remove DVD/ISO and then reboot the system.
• The server should now boot and present the logon screen (or send the ctrl-alt-del button to see the login screen).
• Press the accessibility icon in the lower left corner.

At the prompt you can change the password, by typing the following command:

net user administrator Password123

This will set the password for the Administrator user to be Password123 (case sensitive).

Now repeat the DVD/ISO boot steps and open command prompt above and run the following to set it back:

c:
cd Windows\System32
del Utilman.exe
ren Utilman.exe.old Utilman.exe

Reboot the system and you can now login using the password you set.