Disabling DEP (Data Execution Prevention)

[Alceryes]

Here is Microsoft's explanation of DEP and how to disable it.

http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2mempr.mspx

I only recommend disabling it for testing and program compatibility purposes
as it DOES keep Windows XP more stable.

 

[Jaelani C. U.]

Does DEP requires 64-bit CPU (eg. AMD64/Itanium)? Mine is Pentium 4 (no
HT; first model).
I have installed SP2, but I don't have the DEP tab in the System property
dialog.
However, my BOOT.INI file does have the /NoExecute=OptIn parameter.
And how do I check whether DEP is currently enabled?

 

[Alceryes]

It doesn't matter what CPU you have for the 'software' DEP to work. I'm
running an Athlon XP and mine's enabled.
To check to see whether DEP is working or not -
right click 'My Computer' go to 'Advanced' tab. Under Performance hit
'settings' and you should see the 'Data Execution Prevention' tab.
The default setting is the first selection - 'Turn on DEP for essential
Windows programs and services'