DavidR
10
It would probably be best to do a clean install rather than install over the top of the existing product as it is so old and the program has changed a great deal.
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Download the version of avast, you decide on from the link I gave 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.
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Download the avast! Uninstall Utility, aswClear.exe find it here and save it to your HDD (it has uninstall tools for all versions).
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- Now uninstall avast! - using add remove programs, if you can’t do that (as appears to be the case) start from the next step, reboot.- 2. run the avast! Uninstall Utility, it will request it be run from safe mode (and will handle the boot into safe mode), first for 4.x if previously installed and then for 5.x, once complete reboot into normal mode.- 3. install the latest version, reboot.