I've had 4.8 for a while with no problems. The software worked fine when it was free. Then the "your trial is about to expire" message started popping up, and Avast became more annoying than the Spyware it blocks.
The software did a good job, so I decided to buy a license.
I installed 5.0, and now neither works.
The summary screen shows "UNSECURED" in bold red letters. I click "Fix now" and nothing happens.
Beneath that, a message saying the antivirus has stopped. I click "Start program" and nothing happens.
When I click the Real-Time Shield tab, it says Protection Status: UNKNOWN. I click "Start" and it says "Unable to start the File System Shield! Shield unreachable"
I don't mind expiring free trials. But if you're going to harass people to upgrade with intrusive pop-ups, the least you can do is make upgrading seamless.
I've rebooted a couple times and tried to uninstall 4.8 and reinstall. Same result. What's my next move here? I'm on Windows 7 by the way.