Registry hack enables continued updates for Windows XP

Summary:[UPDATE: Microsoft response] A single registry setting makes Windows Update think your XP system is Windows XP POSReady, which will receive updates for another five years.

As reported by Wayne Williams at Betanews and confirmed by us, a simple registry hack to a Windows XP system tricks Windows Update into providing updates for it.

UPDATE: Six months later, find out how this hack is working so far .

Williams says that the hack, included just below, makes the system look like Windows Embedded POSReady 2009 which will continue to receive updated until April 9, 2019.

To apply the hack, create a text file with a .reg extension and the contents below:

Windows Registry Editor Version 5.00 
[HKEY_LOCAL_MACHINE\SYSTEM\WPA\PosReady] 
"Installed"=dword:00000001

Run it by double-clicking in Windows Explorer. After this is done, if you run Windows Update, it will find several updates, as illustrated in this screen capture:

WinXP.POSReady
Image: ZDNet/CBS Interactive

The screen capture is from our own tests, which appear to work. Notice that two of the displayed updates are for WEPOS (Windows Embedded Point of Service) and Windows POSReady 2009. The others are for Windows Server 2003, which runs the same kernel and many other components as Windows XP.

This specific hack works only on 32-bit systems, but a 64-bit workaround is available at this page, which may have been Williams's source for the 32-bit hack.

[UPDATE:] Late Monday we received a statement from a Microsoft spokesperson:

We recently became aware of a hack that purportedly aims to provide security updates to Windows XP customers. The security updates that could be installed are intended for Windows Embedded and Windows Server 2003 customers and do not fully protect Windows XP customers. Windows XP customers also run a significant risk of functionality issues with their machines if they install these updates, as they are not tested against Windows XP. The best way for Windows XP customers to protect their systems is to upgrade to a more modern operating system, like Windows 7 or Windows 8.1.

Topics: Security, Windows

About

Larry Seltzer has long been a recognized expert in technology, with a focus on mobile technology and security in recent years. He was most recently Editorial Director of BYTE, Dark Reading and Network Computing at UBM Tech. Prior to that he spent over a decade consulting and writing on technology subjects, primarily in the area of sec... Full Bio

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