When you select either the Restart or the Shut Down option in the Shut Down Windows dialog box, the computer may take a long time to shut down (up to two minutes on a Microsoft Windows XP-based system, and up to five minutes on a Microsoft Windows 2000-based system).
Note To locate the Shut Down Windows dialog box, click Start, and then click Shut Down.
This problem may occur after you try to write data to a write-protected Secure Digital (SD) mediacard on your computer. Specifically, this problem occurs because the small form factor disk driver does not complete the I/O RequestPacket (IRP) correctly when it determines that the SD media card is write-protected. During shutdown, the I/O Manager cancels all outstanding I/O Request Packets after two minutes on a Windows XP-based computer and after five minutes on a Windows 2000-based computer. Only then can the computer successfully shut down.
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
Or, you can contact the hardware vendor of the SD controller, or contact your PC OEM vendor for an updated driver.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.