registration key

After registering a new key, I am now unable to run a virus check. Abox pops up that says…program cannot set properly into main storage… My system is Windows 98 and I have Avast 4.7 What’s wrong and how do I fix it?

Try a repair of avast. Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow. You need to be on-line to do this.
If that doesn’t work try, uninstall, reboot, install, reboot.
It would probably be best to download the latest version of avast and save it to your HDD, somewhere you can find it again. Use that when you reinstall.

What’s the full path of your avast! installation folder?