Parallels Workstation 2.2, 1-9u, IT, MNT WWL2XM-01-IT Benutzerhandbuch

You can return to the previous steps by clicking the Back button. 

 

10  If your Windows primary system is configured to warn you every time an unsigned driver is 

installed, you will receive the following message box: 

 

Click OK to disable the unsigned driver warnings during Parallels Workstation installation. 
They will re-enabled later when the installation will be complete. 

If your system is configured to block the unsigned drivers installation, you will receive the 
similar message prompting you to allow installation of these drivers. Click OK, otherwise 
Parallels Workstation can not be installed at all.