New update problems

So, I love avast but this morning I had some problems for the first time. It wanted to update, so I did. It wanted to restart the computer. I let it. The update corrupted my windows 7. It would not load. I had to load in safe mode and recover. Then I tried it again and got the same result. I figured if it was a common problem then someone would have it in the forums. I checked and could not find any postings. What should I do? Should I download the tool for uninstalling Avast and try it from scratch? Anyone else had some problems like this? Any solutions?

Thanks for advice in advance.

Was this an update from V7 to V8 ?

Lets reinstall Avast

Download aswClear to your Desktop.
Download the correct version of Avast
http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe
http://files.avast.com/iavs5x/avast_pro_antivirus_setup.exe
http://files.avast.com/iavs5x/avast_internet_security_setup.exe
Disconnect from the net
Uninstall Avast via control panel

[*]Boot to Safe Mode.
[*] Restart the computer.
[*] As soon as BIOS is loaded begin tapping the F8 key until the Advanced Options menu appears.
[*] Use the arrow keys to select the Safe mode with Networking menu item
[*] Press Enter.
[*]Run aswClear
[*]In the Select Product to Uninstall dropdown choose the version of Avast that is on your system.

https://dl.dropbox.com/u/73555776/aswclear.JPG

[*]Press Uninstall
[*]Once complete reboot your system to Normal Mode
[*]Reinstall Avast