May 16, 2019  Type your new, valid Windows XP product key in the New key: text boxes and then click the Update button. Now reactivate Windows XP by following the instructions on the Activate Windows by phone window, which you should now be seeing, or via the internet by clicking the Back button and following the instructions on that screen. Oct 16, 2016  This application automates the task of changing your Windows XP product key. Simply enter your new valid XP product key into the field provided, and apply pressure to the 'Change Key' button. The operation performs the following tasks: - Modifies a certain registry value to trick Windows into thinking it has not been activated. When the Windows Product Activation window appears, click Yes, I want to telephone a customer service representative to activate Windows, and then click Next. Click Change Product key. Type the new product key in the New key boxes, and then click Update. If you are returned to the previous window, click Remind me later, and then restart the.

• Windows Xp Sp3 Change Product Key
• Windows Xp Change Product Key Command Line
• Windows Xp Sp2 Change Product Key

If you insist, go ahead and use any free Windows XP product key. These are 100% working keys, as we regularly update our listings here at iTechGyan. How to change a Windows XP product key. Sometimes you may want to change your Windows XP product key after you have installed it. Follow the easy steps below to change the serial key. Do you need to change Windows XP product key so you can activate Windows properly? Sometimes, users are required to change or re-enter the product keys in Windows XP to solve and fix activation problems, or after buying a genuine license for Windows operating system, it’s necessary to reactivate. Recovering a Windows XP License key. If the old machine had a sticker, it was most likely an OEM license. OEM licenses cannot legally be moved from one computer to another one. They die when the computer dies. But, in answer to your question. Load the old registry hive on your new computer and then find the XP key. Now, select the Change Product Key option and enter your new product key as shown in Figure B. Finally, click Update and close the window. Finally, click Update and close the window.

For most Windows XP installs, you’ll never need to worry about the validity of the product key assigned to your copy of the OS. However, software does tend to get installed without authorization, even in the most carefully managed shops, and so from time to time you may need to reset the XP product key.
For example, perhaps a user installed a pirated copy of XP but now wants to go legal. Maybe you've been hired by an organization that installed 100 pirated copies of XP but now has a legitimate volume-licensing key (VLK). Perhaps an end user purchased an additional retail license for XP but needs to use his original CD to install the software. When situations like these arise, changing XP's product key is often the most practical—or only—solution.
Determining if you have a valid product ID
Hopefully you already know if you're dealing with a pirated copy of XP. But if you're unsure, a quick way to tell is to install Service Pack 1. Shortly after releasing Windows XP, Microsoft realized that most pirated XP installations were using two specific VLKs, the most popular of which begins with 'FCKGW.” These VLKs produce product IDs that match either XXXXX-640-0000356-23XXX or XXXXX-640-2001765-23XXX, where X is any number.
If you try to install SP1 and get the following error message:
The Product Key used to install Windows is invalid. Please contact your system administrator or retailer immediately to obtain a valid Product Key…'
You are dealing with a pirated copy of Windows. For more information about obtaining a valid product key, see Microsoft Knowledge Base article 326904.
You can also directly check the OS’sproduct ID by right-clicking on My Computer, clicking Properties, and selecting the General tab. The machine's product ID will be located under the Registered To section. If the ID matches either of the two models commonly associated with VLK fraud, you’ll need to obtain a valid XP product key before proceeding. None of the procedures described below will work without a legitimate product key.
Two methods of changing Windows XP's product key
You can change a Windows XP installation's product key either by editing the registry or by using one of two Windows Management Instrumentation (WMI) scripts. The registry editing method is outlined in Knowledge Base articles 321636 and 328874 and works on Windows XP Home, Windows XP Professional, and Windows XP Corporate Edition. The script method is outlined in article 328874 and is designed to work on Corporate Edition installations that use a VLK and do not require activation. It may work on a Home or Professional installation, but I have not tested this scenario.
The script method is the practical solution for changing the product keys on a large number of machines. Regardless of the method you choose, make sure to backup important data before changing a product ID, since an unexpected problem could render the machine unbootable and necessitate a complete reinstallation of Windows.

Warning

The following instructions involve editing your system registry. Using the Windows Registry Editor incorrectly can cause serious problems that require the reinstallation of your operating system and possible loss of data. TechRepublic does not support problems that arise from editing your registry. Use the Registry Editor and the following directions at your own risk.

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Windows Xp Sp3 Change Product Key

Editing the registry
Begin by opening the Registry Editor and navigating to
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsNTCurrent VersionWPAEvents
In the right pane, right-click the ODBETimer binary value and select Modify. Change at least one character of this value to either a number from 0 to 9 or to a letter from A to F, then click OK and close the Registry Editor. This renders the current product key invalid and deactivates Windows.
Now, it’s time to reactivate Windows using your new product key. Click Start | Run and enter the command:
%systemroot%system32oobemsoobe /a
where %systemroot% is your Windows directory. In many cases, this command will look like:
C:windowssystem32oobemsoobe.exe /a
At this point, Windows will launch the Product Activation Wizard.

Select the option to telephone a Microsoft customer service representative to activate Windows, as shown in Figure A, and click Next. Now, select the Change Product Key option and enter your new product key as shown in Figure B. Finally, click Update and close the window. If Windows returns you to the previous screen, just select the Remind Me Later option. When the wizard is finished, reboot the system.

Windows Xp Change Product Key Command Line

Windows Xp Sp2 Change Product Key

When Windows reboots, your next step will depend on which Windows XP version you are using. If you have XP Home or Professional, you’ll be prompted to reactivate your copy of Windows through the normal activation process. If you have XP Corporate, no activation is required and your machine should have a valid product ID. You can verify this by running the %systemroot%system32oobemsoobe.exe /a command again. When the wizard loads this time, you should see a message indicating that your copy of Windows has already been activated.
Using a WMI script
Although the registry editing process is effective, it can be tedious and impractical if you need to change the product key on more than a few machines. So Microsoft provides two WMI scripts, one for XP machines with SP1 and one for XP machines without SP1.
View the code for the WMI script, ChangeVLKey2600.vbs, designed for use on XP machines without SP1.
View the code for the WMI script, ChangeVLKeySP1.vbs, for XP machines with SP1 already installed.
Copy the appropriate script's code into a text file and save it as either ChangeVLKey2600.vbs or ChangeVLKeySP1.vbs. The scripts can act in conjunction with a valid product key as part of a login script to change the product ID on multiple machines. You can also execute the script from the command line to change the key on a single computer.
For example, if you wanted to change the product key on an XP machine without SP1 and had already saved the script to root directory on the C: drive, you would click Start | Run and enter the following command:
C:changevlkey2600.vbs xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
Of course, xxxxx-xxxxx-xxxxx-xxxxx-xxxxx in this scenario is a valid product key.
The script should take only a few seconds to run and won't prompt you for further action unless there's a problem, such as an invalid product key. As with the registry editing method, you can verify that Windows is now using a valid product key by running the command:
%systemroot%system32oobemsoobe.exe /a
The Product Activation Wizard will load and should tell you that your copy of Windows has already been activated.