I installed AVG Internet Security 2012 on my W7 Dell laptop and it appeared to be working OK until my DVD/CD drive would no longer work. I couldn't even eject the CD. I suspected that I would have to pay someone to fix what AVG had corrupted on my computer until I found the restore function in the Control Panel. So I restored my computer back to the state prior to the AVG installation and everything worked fine again. I have wasted a couple of hours on this software and now am requesting a refund from AVG and for them to honor the "100% Money Back Guarantee" that is stated on their website. I can assure you that refund or no refund AVG is not going to be installed on my computer again.