Please Help !!!! Malicious URL Blocked message

Essexboy:

I tried “repair my computer” but it hung up twice.
Since I need to pay bills on this computer, I went ahead and did a system recovery from the repair disk I made back in March.
My computer is back to normal now, though I need to install a few applications.
Thanks much for your helps. I really appreciate it.

Any advice on how to keep my computer safe from what just happened to me beside running avast ? I have Avast installed since March at least.

son

There is a little MS dit on it here http://windows.microsoft.com/en-GB/windows-vista/Understanding-security-and-safe-computing