Margaret, Have a look @ this article (http://avgclick.me/W10compatibility).
AVG Guru
I have the AVG Internet Security 2015- paid version. Ever since the update from Windows on 7/31/2015- Update for Windows 7 for x64-based Systems (KB2952664), I've had problems with my computer at work. I called our IT company to come out and take a look because one of the web based programs I use for work kept giving me a JIT debugging error rendering that program useless. So 2 1/2 billable hours later, in the last 5 mins of his work(IT guy), I tried to think about what makes the 2 computers that are having this issue, different from the rest of the computers in our office. The 2 having this issue have the Internet Security 2015 paid versions and the rest have the free 2015 protection. We figured out there is something in AVG-"PAID" that doesn't work well with that latest Windows update on 7/31/15. We uninstalled AVG and sure enough, the scheduling program worked just fine. I am not able to use the AVG on my computer anymore so I passed the protected on to another computer here in the office. As soon as I installed it on a different computer, that computer starting giving that JIT debugging error in the scheduling program as well. So I know it is the AVG causing the problem. Any other computer the scheduling programs works fine until we introduce AVG Paid into the mix. We tried turning off the firewall, everything you can think of but when we uninstalled it, everything was fine. I also have the AVG Internet Security 2015 on my laptop and the scheduling program works fine but that computer is Windows 8.1. My IT guy said the update on 7/31/15 was just an update for Windows 7 to get ready for the Windows 10 release or something of the sort. So I wanted to pass this on to AVG in case you didn't know or someone else has this problem. I would love to continue to use AVG but at this time I can't. I hope this is all understandable, I am not too tech savvy. Hope it helps!!
Margaret, Have a look @ this article (http://avgclick.me/W10compatibility).
AVG Guru