Verizon MiFi 2200

I bought the Verizon MiFi 2200, and when I go to install it, I am prompted with a Windows Installer message. It says: "The windows installer could not be accessed. this can occur if the windows installer is not correctly installed. contact your support personnel for assistance." So i looked online and it told me to change the Installer setting to manual and it will be fine, but it is already on manual and when I hit start it give me another error message that reads: "The windows installer service started then stopped. Some services stop automatically if they are not in use by other services or programs. "

Is there anything I can do to get it to install correctly? I have windows Vista. I have looked online but haven't found anything dealing with this issue. Please Help.

 

Your windows installer is possibly corrupt, the easiest solution is to run a Repair install.

Do you have a Vista OS disc?