Hi, currently I tried to install a software which will involved DEP in windows 7. I turned DEP off in win xp by editing the boot.ini file to totally turn off the DEP. Can anyone tell me how to edit the boot file on win 7 to turn off DEP? Thanks!

DEP should not be disabled, its intended to prevent some malware from gaining control of a machine. There is no boot option to do that. Its possible to disable it, but I strongly suggest not doing that as it will expose you to a lot of risks.Vote if answered or helpful, I am running for Office (joke)! IT/Developer, Windows/Linux/Mainframe RaidMax Smilodon, 680W, Asus M2NBP-VM CSM AMD X2 4200+, 2GB DDR2-800, x600, more details on my site, need a video card for the Windows machine, the 8600 GT fried

Hi Ben, I agree with Vegan. It is recommended that not disable DEP. However, if you still want to turn it off, you can try the steps in the following link:Change Data Execution Prevention settingshttp://windows.microsoft.com/en-US/windows-vista/Change-Data-Execution-Prevention-settingsNote: you can choose "Turn on DEP for essential Windows programs and servuces only" in the last step.Hope this helps!Sean Zhu - MSFT

Thanks a lot!

You can use BCDEdit to completely disable DEP on a Windows 7 machine. bcdedit.exe /set {current} nx AlwaysOff Reboot following that command.