avast 5 home edition . trouble shooting in activation . I can't activatye it an

I didn’t have any problems with my 4.8 edition , but when it expired yesterday , I deleted it and got the avast 5 home edition .
When I try to repair it , it says that the avast is unstable . :cry:

Try a clean reinstall:

  • Download the latest version of avast, 5.0.507 http://www.avast.com/free-antivirus-download 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, aswClear5.exe find it here and save it to your HDD (it has uninstall tools for both 4.8 and 5.0).

    1. Now uninstall (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 4.8 if previously installed and then for 5.0, once complete reboot into normal mode.- 3. install the latest version, reboot.