Problems upgrading from free to pro

[houndgrrrl]

A couple of weeks ago, I purchased one year, one computer upgrade. I saved the license file, and when I try to enter it, all I get is a white screen, my computer hangs up, and I have to manually reboot my computer. I have tried uninstalling Avast through my control panel, but am not able to. Please help, thank you.

[DavidR]

It would probably be best to do a clean install of avast Pro.
- Download the latest version of avast Pro, 7.0.1474 http://files.avast.com/iavs5x/avast_pro_antivirus_setup.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, aswClear.exe find it here and save it to your HDD (it has uninstall tools for 5.x, 6.0.x and 7.0.x).

• 1. Now uninstall avast! (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 6.x if previously installed and then for 7.0, once complete reboot into normal mode.
• 3. install the latest version, reboot.

[houndgrrrl]

I am so embarassed by my next question, but how do I get to safe mode? I have XP. Again, thanks.

[bob3160]

I am so embarassed by my next question, but how do I get to safe mode? I have XP. Again, thanks.

This should help you:
http://www.computerhope.com/issues/chsafe.htm#02


If you didn't ask, that would be embarrassing. 

[houndgrrrl]

Thank you both for all your help! I am up and running!

[DavidR]

No problem, glad we could help.

Welcome to the forums.

[bob3160]

Thank you both for all your help! I am up and running!

That's always nice to hear.