Besides MBAM (free or Pro?), do you have any other security software (firewall, anything else)?
If you have already tried a repair, and you manually tried to turn the shield back on and that did not work, then I suggest an uninstall of Avast and
CLEAN install[/b] to fix your problems.
Please follow these instructions:
1. Save a copy of newest version of Avast (
5.0.594) for the version you need and save it to your HDD:
Free –
http://files.avast.com/iavs5x/setup_av_free.exe Pro –
http://files.avast.com/iavs5x/setup_av_pro.exeAIS –
http://files.avast.com/iavs5x/setup_ais.exe 2. Download the Avast Uninstall Utility, aswClear5.exe
http://www.avast.com/uninstall-utility and save it to your HDD.
3. Disconnect from the Internet at this time.
4. Uninstall Avast through "Add/Remove Programs".
5. Boot into
Safe Mode and run the Avast Uninstall Tool.
6.
Reboot twice.
7. Clean your computer up (clean up cache, etc.).
8. Install the newest version of Avast and
reboot twice.
9. Get Internet access and update Avast definitions.
10. Register your copy or add the license key for Free, Pro or AIS.
11. Reset your settings, if needed.
Please post your results. Thank you.