This issue occurs if all the following conditions are true:
* You install the 32-bit version of Windows XP SP2 on a computer that has an AMD 64-bit processor.
* You configure your computer to enforce data execution prevention (DEP). DEP is also known as no-execute protection.
* You installed hardware that requires the Mpegport.sys driver.
When you restart your computer after you install Windows XP SP2, the Mpegport.sys driver tries to write data to a memory location that is monitored by DEP. This behavior causes the computer to restart.
You may be able to resolve this issue if you configure a DEP exception. To do this, follow these steps:
1. Click Start, click Run, type Sysdm.cpl, and then click OK.
2. On the Advanced tab under Performance, click Settings.
3. On the Data Execution Prevention tab, click Hardware and software DEP enabled for all programs except.
4. Click Add, type the path of the Mpegport.sys file on your hard disk, and then click OK two time