Is my license good for 6 prof? I have 4.8 backed up [somewhere], but will it sych OK w/ the automatic update servers?
Use the link provided in the previous post if you do not have or remember your license.
I suggest that since you are going from 4.0 to 6.0 that you do an Avast uninstall and clean install:
1. Save a copy of Avast
6.0.1000 and save it to your HDD:
http://www.avast.com/pro-antivirus#tab5 - click on "
Download My Product"
2. Download the Avast Uninstall Utility
http://files.avast.com/files/eng/aswclear6.exe and save it to your HDD (it has uninstall tools for all Avast versions and products).
3. Disconnect from the Internet at this time.
4. Go to Control Panel and uninstall Avast through Add/Remove Programs if possible and reboot.
5. If Step 4 fails, boot into
Safe Mode (hit F8 repeatedly) and run the Avast Uninstall Tool.
Uninstall ALL previous versions/products of Avast you had on this machine at this time.
6.
Reboot.
7. Install the newest version of Avast and
reboot.
8. Get Internet access and register your copy or add the license key for Pro.
9. Update the Avast definitions.
Let us know how this works for you. Thank you.