how to change windows xp product key

January 11, 2012 at 22:24:03
Specs: Windows XP
I have a PC with an OEM version of XP Pro on it but no holographic sticker (I believe it originally came from a scrapped Dell PC). I also have a another PC which is being scrapped so I'm removing the OEM sticker from that to put on the working PC, and so I want to change the CD key. However, using the prescribed method of running regedit & changing numbers in the OOBETimer key has no effect - it still says that XP is activated - in fact I can remove all of the digits & still no joy. Anyone got any ideas what's happening?

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January 12, 2012 at 04:50:40
You can't use an OEM Product Key from one PC and transfer it to a different PC.

An OEM Product Key is only valid for the original PC it was supplied with.

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January 12, 2012 at 05:01:38
If the system is functioning properly & is already activated, why are you bothering to change the product key? Do you know the key that was used originally? If not, use Magic Jelly Bean Keyfinder to find the key, then write it down & store it in a safe place. Save the other one for future use on another system.

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January 12, 2012 at 11:27:46
See the link below for a better explanation of what you may be calling OEM. Your license may actually be SLP, not OEM.

If you buy a copy of Windows from a vendor along with some hardware, you most likely are buying a full, OEM version. The OEM version is supposed to stay with the original hardware but Microsoft doesn't enforce that.

See the link below and read teh FAQs.

SLP versions will usually not install on a different series of computer. Just yesterday I attempted to install an SLP version of WinXP for a Compaq. It wouldn't work, saying the disk was for a different model of Compaq computer.

You can use the SLP Operating system disk if you have a product key. The product key must match the same series of hardware. Will sometimes work across brands with the same type of hardware. In other words it is a crap shoot.

One thing to note is the OEM key on the case is NOT the same as the key in the registry. The registry key will be the standard 5 groups of 5 number. The OEM may be . Recover the internal key from the hard drive. If the old system doesn't run anymore, I think the newer versions of magical jelly bean key finder will look at a slaved drive.

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Related Solutions

January 13, 2012 at 23:16:28
Click start in the bottom left corner, then click run
ype 'Regedit' in the white text field, and click OK.
Type 'Regedit' in the white text field, and click OK. This should open the Registry Editor.
Navigate to the following registry key.
Hkey_local_machine\Software\Microsoft\WindowsNT\Current Version\WPAEvents

Right click 'OOBETimer', in that registry key that you just navigated to and then click 'Modify'.
Right click 'OOBETimer', in that registry key that you just navigated to and then click 'Modify'.
Change one or more digits to anything random.
Click start and then click run.
Paste '%systemroot%\system32\oobe\msoobe.exe /a', in the white text field,.
Click "Change Product key"
10Type the new product key into the small white text fields and then click update.
Type the new product key into the small white text fields and then click update.

Check that you get a message similar to 'You have successfully activated your copy of Windows.', if you do, restart your computer, and you're done!
Make sure you are connected to the internet in this process!

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January 14, 2012 at 07:16:03

Best to link directly to the source of your help instructions. See link below.

Also see the next link which explains that changing the key is not always straight forward.

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