Antivirus software is essential for safe internet browsing.

I've been reading around – is anyone still using Avira Antivirus? It's a great antivirus, and I'm quite happy with it – I used to have it on XP along with Outpost Firewall. But when I upgraded to Windows 7, Outpost unfortunately failed – it caused a BSoD with even the slightest changes to the system. It took me a long time to figure out who the culprit was.