we had Avast home edition latest edit working briliantly :-*on the pc then it decided to chuck a wobbler and long story short it needed to be “recovered” it kept the avast on but asked for the key so with the original key we copy /pasted/ hand typed it to no avail it keeps saying invalid key we emailed to make sure and got the key again and it is still doing the same thing can u tell us why? ???
What do you mean by recovered ?
If you mean going back with system restore, that is far from infallible.
Ensure that the system date, day/month/year are correct, adjust if required and re-enter the registration key.
If that doesn’t work or the system date is correct I would suggest a clean reinstall:
Download the latest version of avast http://www.avast.com/eng/download-avast-home.html and save it to your HDD, somewhere you can find it again. Use that when you reinstall. Ensure that you scroll down and select the avast direct download link for the English version and not Cnet as that is for an on-line installation (not what you want to do). - Direct download for avast Home, English version, http://files.avast.com/iavs4pro/setupeng.exe.
Download the avast! Uninstall Utility, find it here and save it to your HDD.
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- Now uninstall (using add remove programs, if you can’t do that start from the next step), reboot.- 2. run the avast! Uninstall Utility, reboot. If step 1 failed it may be necessary to run this from safe mode, once complete reboot into normal mode.- 3. install the latest version, reboot.
Hi thankyou for your great help 8) it was a pals pc so had to wait until i visited to read / carry it out and it has of course worked and it is back up and running 
wooo!
so mucho thank you’s we are very grateful indeed ;D
again thanks Avast rocks :-*
No problem, glad I could help.
A belated welcome to the forums.