Does the corporation allow you to do that, otherwise your speaking about a PIRATED edition, and Tomshardware does not support or allow any such discussions about that. I do have corporate serial though that works for 8 pcs. I enter the activation code and bingo, it works. I don't even have the network cable plugged in while installing. I have never had to 'activate' my XP installs. You would call in, they would politely inform you that they do not provide support for depreciated software (BTW you would get the same answer right now on your Windows 7 question too, because as a CONSUMER - aka not Corporate account - Windows 7 is no longer supported) and would offer the opportunity to upgrade to currently supported Operating System. Do you really want to be on hold a hour and a half to get a answer why Office365 isn't saving a document? Or how your hardware partner's new HP Tablet needs a restore and how to do that in Windows 8 for great grandma in Connecticut? See if they kill one, they kill both. Why would I (M$) stop funding automated server authentication that has a much smaller cost than the cost of multiple call center buildings, electricity / upkeep of those buildings, desks, furniture, security, computer systems, then the users of those system (call center person your saying to call), management and associated HR costs for having those employees, the facilities and computer people to keep all that running, all to take phone calls that automated systems regionalized in virtual server farms would be ALOT LESS COSTS? And don't say 'oh they already have those and they just do the XP too', because you just double to triple your workers 'calls' and now they can NOT answer for the products they do support.

But, do they provide a way to re-activate existing installations?' I'm pretty sure you can still activate it, but they might have taken the servers offline. So, the question is 'I know MS no longer supports XP re patches, updates, & such. What I had, worked just fine for many years. But, if I can just get the current WinXP re-activated quickly, that would be better. Yes, I could go with the XP emulation offered under Win7. I just replaced a broken HD, cloned the contents from a recent backup to a new HD, replaced a dying CD reader, and it seems I tripped MS's activation threshold.

The system is never used for browsing or such, so Internet security is not an issue. There are no drivers available for any other version of Windows, and the company that wrote the current ones is no longer in business. My company has some expensive special purpose HW with custom drivers that are critical for a long term project. But, the MS activation server seems to be off-line. I need to (re)activate a fully licensed Windows XP64 installation.

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