eduardo
25 Oct 2017

open Registry Editor (Start->Run then enter regedit and push OK button)
open the registry key at the location HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents
edit the OOBETimer key value and set its value to “ff d5 71 d6 8b 6a 8d 6f d5 33 93 fd”
right-click on the same key WPAEvents and select “Permissions”
select SYSTEM group/user and check all DENY options (we won’t allow XP to mess with us anymore, in fact we deny it firmly :o)
click Advanced button then uncheck “Inherit from parent the permission…”, press OK, when prompted at next step just answer with “Copy”
in “Permission entries” select the SYSTEM then choose “Edit…”; check all the “Deny” permissions the OK+Apply

It should not ask you anymore for software activation. In fact you could run Start->All Programs -> Activate Windows and you should get an response message like “Windows is already activated”. If not working then just try again, maybe you have missed something on the way.

https://mynixworld.wordpress.com/2012/12/19/bypass-windows-xp-license-a…

Start your computer in safe mode (use plain safe mode).
Login using an administrator user account. If you could login to the hidden Administrator account, then use that.
Go to Windows Start menu and open RUN. Or you can press on your keyboard the Windows key and letter R.
Type CMD in the run textbox and click on OK. This will open the command prompt window.
Type these commands and press enter. Then click OK on each prompts :

regsvr32 regwizc.dll
regsvr32 licdll.dll

Type this last command (type exactly as what you see here):

rundll32.exe syssetup,SetupOobeBnk

Wait for a couple of minutes because the last command will not show anything on the screen. However, it will reset the licensing components in the background.

http://troubleshooting-101.blogspot.pt/2012/02/windows-xp-activation-lo…

Windows stores the activation information in two files in the c:\windows\system32 folder: Wpa.dbl and Wpa.bak. If those files are locked, or permissions are incorrect, Windows may not be able to save its activation information.

You might also want to check the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFTNT\CurrentVersion\Winlogon
(change Activation Required value to zero)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion
(change RegDone value to 1)

Boot into safe mode, click Start→Run and type regedit then check these values.

Hope this helps. Cheers.

https://forums.techguy.org/threads/solved-win-xp-activation-loop.363300/

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