I have tried to install the free version of avast ont my computer and it says it is successful but then comes up as unsecured and I cannot get it to run - it will not let me register so i can’t get technical support.
It was on this computer once - then we had a problem which had to be fixed by a technition and now this keeps happening.
Uninstall avast from Control Panel (if possible). If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
Run the avast! Uninstall Utility saved on 1. If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after you’ve run it.
Install avast! using the setup saved on 2. Boot.
Register your free copy or add the license key for Pro. Or even upgrade your key from old versions.
Check and post the results. If, for any reason, you did not solve, try doing the step 3 in Safe Mode anyway.