I'm not the first, & won't be the last...
About two years ago I purchased an HP Pavilion, direct from HP, with an OEM copy of Windows XP Pro installed.
Slightly more than a year ago, Windows Update told me my copy was suddenly pirated.
I called the Help Line, and got nowhere.
That night I slapped in a spare HD, installed Ubuntu on it, & I've been using Ubuntu ever since.
I still have the original drive with the "pirate" OEM copy of XP Pro on it, but I only boot to that drive when I find something I absolutely, positively, can not get working under Linux.
I've only HAD to boot to Windows *three times* in the last year, and two of those were because I wanted to play a game I couldn't get to run under WINE.
(Which now works under WINE, and runs *BETTER* than in Windows!)
Ubuntu runs my WiFi, USB, DVD player, mp3's, Flash, et al like a champ; OpenOffice reads & writes those stupid Office documents, Power Point presentations, Excel spreadsheets, et cetera; all without the headache Windows provides.
MS, you had the unmitigated GAUL to claim my OEM copy of XP Pro was pirated.
When I called to ask WTH, you asked me if I "purchased it from a dodgy retailer?"
Not unless you call dialing up HP's B2B Direct Sales line gets me provided with counterfeit software.
MS, you lost a customer because of your shenanigans.
I'm not the first, & I certainly won't be the last.