Can't turn on protection.

Avast Free Antivirus / Premium Security
1

Hi, I upgrade from Avast 4.8 and installed 5 over top of it.

Microsoft security center is reporting that avast isn’t on. I can’t turn it on either from the MSC.

2

Hmmm, I suppose you’ve uninstalled 4.8 and booted before installing 5.0?

I suggest an installation from the scratch:

  1. Download the latest version of avast! Uninstall Utility and save it.
  2. Download the latest avast! version and save it.
  3. Uninstall avast from Control Panel (if possible). If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
  4. Run the avast! Uninstall Utility saved on 1. If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after you’ve run it.
  5. Install avast! using the setup saved on 2.
  6. Check and post the results.