How to change Windows XP lincence without re-installing

Hi,

My friends office have a few PC's which they bought from a "used PC seller" all of them are non-branded but had Windows XP installed, but the licnece were not original.

Now my friend bought Windows XP OEM package with licences, and wants to knwo how to change the XP licence without re-installing the whole OS again.

please help
jitu
its_sreeAsked:
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Huseyin1Commented:
Hi

This is the location of the registry key in windows 98, do a similar path search in XP to find the product key on the right of the screen and then change the key.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion

H
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LucFEMEA Server EngineerCommented:
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KenneniahCommented:
I can't get to those links from here LucF, so if this is the same information as in those links forgive me :P
And its_sree, if you use this information, but it is in LucF's links make sure the points go to LucF.

1. Run regedit and go to: HKey_Local_Machine\Software\Microsoft\WindowsNT\Current Version\WPAEvents, on the right double click on "oobetimer" and change at least one digit of this value to deactivate windows.
2. Choose run from start menu and type in this command:
%systemroot%\system32\oobe\msoobe.exe /a to get the activation screen and go to the second option which is activate by phone.
3. In the new screen choose the option to change product key, and type in the new product key.
4. Close that window, reboot your system and enter the command in step 2 for the second time to verify your activation , you should see "windows is already activated".
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LucFEMEA Server EngineerCommented:
Kenneniah,
no it's not the same information that's on the links I posted, my links have a little program that do all the work for you (so it's easier for inexperienced people, because they then don't have to use the registry editor)

LucF
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KenneniahCommented:
Easier is good :)
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LucFEMEA Server EngineerCommented:
;-)
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its_sreeAuthor Commented:
hey guys, I will try this out this evening and let you know, thansk for the help

:)
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LucFEMEA Server EngineerCommented:
Ok, let us know how it goes..
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CleanupPingCommented:
its_sree:
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LucFEMEA Server EngineerCommented:
Recommendation: answered by LucF
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