This just appeared on Boing Boing.

DRM bites again: the Microsoft Windows Genuine Advantage servers (which every XP and Vista install phones home to) all failed sometime earlier today.

The result? Every single Windows XP and Vista installation — except possibly those with volume license keys — is being marked as counterfeit when it tries to check in.

Looks like this isn’t the weekend to install a copy of Windows or buy a new Windows PC. Now where are they selling Macs.

When you read the forums on this (linked in blockquote below) it’s incredible.

Validation issues – Microsoft is having WGA server problems

Thank you for your response.

I’m sorry to inform you that the Windows Genuine server might be down for few days. I have escalate the issue to our Genuine team, kindly try to validate again on Tuesday 28 Aug 2007.

Thank you for contacting Microsoft Technical Support.

If these programs were properly designed they would all self-validate if the validation server went down. The cheaters would have a free day or two and be caught later. How hard can that be? But no. Now everyone is assumed to be a crook. This is a developing story.
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UPDATE: It’s fixed, relatively speaking. Sort of.

Folks:

I understand the frustration you all are going through. I’m investigating the issue right now.

I guarantee that we’re working on this issue right now. For folks wondering, MACHINES ARE NOT SHUTTING DOWN with reduced functionality.

I guarantee that I will personally resolve this issue before I go to sleep – whether or not it is Tuesday I sleep.