Just tried installing latest WA update for the first time on windows 7 but my antivirus tells me it detects a virus and trojan and deletes it.

Cd is the sold out version, anti-virus is McAfee. Anyone else experience this?

I know its probably nothing to worry about but my PC is brand new so im being cautious.

Thanks in advance.

Some anti-viruses pick up the latest updates as false positives. You should complain to your A/V vendor.