if you have IE8 - don't use it

[happyAvocado]

krebsonsecurity.com/2013/05/zero-day-exploit-published-for-ie8/

"Security experts are warning that a newly discovered vulnerability in Internet Explorer 8 is being actively exploited to break into Microsoft Windows systems."

You shouldn't be running a browser that outdated anyway if you can help it! I'd consider it a good moment to upgrade to something more up to date...

The best way to protect yourself from Windows security holes is of course not to use Windows. If you must use Windows at least use Firefox or Chrome.