Error "The VPN client driver has encountered an error"

Complete these steps in order to resolve the problem:

1.     Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

2.     Run net stop CryptSvc.

3.     Run esentutl /p %systemroot%\System32\catroot2\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\catdb.

4.     When prompted, choose OK to attempt the repair.

5.     Exit the command prompt.

6.     Reboot.

If the repair fails, complete these steps:

1.     Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

2.     Run net stop CryptSvc.

3.     Rename the %WINDIR%\system32\catroot2 to catroot2_old directory.

4.     Exit the command prompt.

5.     Reboot