After you install Microsoft Windows XP Service Pack 2 (SP2), your computer repeatedly restarts. You do not receive an error message.
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.
RESOLUTION
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.
RESOLUTION
