I just bought AVG PC Tuneup but need a digitally signed driver

Hi Linda,

We apologize for the inconvenience caused, please attach us the screenshot http://avgclick.me/getscreenshot of the Error Message that you're getting to assist you better.

Thank you!

How do I get a "digitally signed driver" for my computer?  I have Windows 7.  I just bought AVG PC TuneUp & during installation I couldn't continue because I got a message saying "Windows requires a digitally signed driver."  Can anyone help me?
Linda, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru
Hi Linda,

We apologize for the inconvenience caused, please attach us the screenshot http://avgclick.me/getscreenshot of the Error Message that you're getting to assist you better.

Thank you!