Hi,
I've just got a rootkit alert seconds after Windows Update completed installing KB2735855 (System update), KB2736233 (ActiveX), KB80830 (Malware removal) and KB915597 (Definition Updates).
I said "ignore", and then proceeded to reboot the computer to finish the updates.
I suppose it was a false positive? I'm fairly sure my OS is clean.
Also, I can't seem to find any log of this detection to post here...