I see this problem more and more. Especially after patch Tuesdays.
1) You install all the updates available from Microsoft.
2) You reboot the computer as per request of the update.
3) Computer reboots and then hangs on Windows starting.
To resolve the problem you have to do the following:
1) Boot in to save mode command line only.
2) Move all the asw*.* related files in c:\windows\system32\drivers to another folder, or delete them.
3) Reboot the computer in to normal mode.
4) After login in normal mode (which was not possible before).
5) Uninstall Avast.
6) Reboot computer.
7) Reinstall Avast from Internet or other location.
Computer is fine again.
I have seen this problem with both the Free and the Internet Security version.
Anybody seeing this problem more and more?
Raoul