Silent Gaming mode should be off by default.
The Mail Shield being off (or any one of the shields) also caused the Real-time shields indication to show Off as this doesn't have a lower level split. I stopped the Mail Shield and that escalates or so it appears in the real-time shields off flag, see image. So the main thing is that the rest of the shields are on and most importantly the File System Shield.
Try a reboot and see if that is enough, if not.
Try a repair of avast. Add Remove programs, select 'avast! Anti-Virus,' click the Change/Remove button and scroll down to Repair, click next and follow.
If that doesn't work a clean reinstall would probably be best:
- Download the latest version of avast Pro, 5.0.545
http://files.avast.com/iavs5x/setup_av_pro.exe and save it to your HDD, somewhere you can find it again (if you didn't save your last download). Use that when you reinstall.
- Download the avast! Uninstall Utility, aswClear5.exe
find it here and save it to your HDD (it has uninstall tools for both 4.8 and 5.0).
- 1. Now uninstall (using add remove programs, if you can't do that start from the next step), reboot.
- 2. run the avast! Uninstall Utility from safe mode, first for 4.8 if previously installed and then for 5.0, once complete reboot into normal mode.
- 3. install the latest version, reboot.
If that doesn't
