OK I take spent the past 10-xv mins looking for a fashion to deactivate Windows XP Professional person…and was successful. Here's how:

Step 1) Get-go->Run type 'regedit'

Step 2) Navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/WindowsNT/Current Version/WPAEvents

Step iii) Double-click OOBETimer when the box comes up change the Concluding 2 HEX VALUES to nulls(00 00)

To Reactivate go to Get-go->Run type "c:windowssystem32oobemsoobe.exe /a" without quotes.

Adept Luck!

Disclaimer: This tip should non exist used for pirated keys! It is intended to change from one legitimate central to some other. This may exist necessary for those who purchased VLK's that were stolen from them and had new licenses granted by MS. It may besides be necessary for those who purchased a used system and would like to have their key associated with their OS. The use of this data though freely available in Microsoft's tech articles is intended for legal use.

  1. Run regedit (Start>Run>regedit>ok) and go to:
    HKey_Local_MachineSoftwareMicrosoftWindowsNTCurrent VersionWPAEvents in
    the right pane double click on "oobetimer". This will bring up the hex codes. Change at least i digit of this value to anything but what it originally was. It actually doesn't thing. Keep in listen that what you enter must still exist in line with the hex-decimal format. (Of import: The hex-decimal format consists but of the numbers i thru 9 and the letters a through f. Example: If it says "ff d5 71 d6 b3 8d…" Change the "ff" to "1f". You can not modify it to let's say "fg" because the value "1000" does non exist in the hex-decimal system.) This volition deactivate windows. Exit regedit.
  2. Cull Run from beginning menu over again and type in this control: "oobe/msoobe /a" (without the quotes of form) to go the activation screen. So you volition want to Actuate past phone so Click on "Activate by phone" (no you will not exist activating by phone). Click Next.
  3. In the new screen choose the selection to change product central and blazon in the new product key (Corporate i but). You cannot apply the famous blacklisted "FCKGW" key. Enter your new legitimate key….no need to click next. Do not click Update. If yous do its ok.. simply you lot don't demand to … you now should reboot. Simply shut that window and reboot your system.
  4. Once rebooted check to make sure that y'all're activated. (Enter the control in stride 2 over again to verify your activation you should meet "Windows Is Already Activated".)

How to remove Windows XP

To remove Windows XP follow these steps:

1. Restart your computer in Safe way. To practise this press the F8 fundamental while Windows is starting.
2. Log on with an account that has administrative credentials.
3. Click Start click Control Panel and then double-click Add or Remove Programs.
four. In the list of installed programs double-click Uninstall Windows XP.

Note If Uninstall Windows XP is not in the list of installed programs y'all must manually reinstall Windows 98 or Windows Millennium Edition. In this case make sure that you back upwards all your disquisitional data before yous reinstall Windows 98 or Windows Millennium Edition.
v. When you receive the following message click Yes to start the Windows XP removal:

Are yous sure you want to uninstall Windows XP and restore your previous operating system?
6. Afterwards Windows XP is removed your estimator restarts to the previously-installed operating system.