Out the gate, the update will reach Windows 7 Home Premium, Professional, Ultimate and Enterprise users, said Joe Williams, the general manager of Microsoft’s activation and anti-counterfeit group. 17, and offered as an optional upgrade via Windows Update later this month, where it will be tagged as “important.” The update to Windows Activation Technologies (WAT), the anti-piracy software formerly known as Windows Genuine Advantage (WGA), will be posted to Microsoft ‘s download site on Feb. Microsoft today said it will soon will feed Windows 7 users an update that detects illegal copies installed using more than 70 different activation cracks.