I had to completely erase my drive and reinstall the OS. I then restored everything from Time Machine and of course everything is broken including Avast. When I tried to renew my (free) subscription, all I get is start a new one. I noticed that the name of my startup disk is now different, so I changed it in the Avast settings but still can't renew the sub. The instructions that come in Avast just don't match the reality eg:
1. Highlight the license key above, then right-click it and select "Copy".
2. Open your avast! Free Antivirus controls and select the "Settings" tab.
3. Next, click the "Registration" tab.
4. Click the arrow next to "Offline registration" to expand this option. (THERE IS NO OFFLINE REGISTRATION ON OFFER)
5. Click the "Insert the license key" button.
6. Right-click in the empty Registration box and select "Paste".
7. Click "OK" – your license key is now inserted and your avast! antivirus software can now be used free of charge for a further 12 months.
It's all very confusing.
