What is "data execution protection" and how to turn off

Data Execution Prevention (DEP) is a new feature in WinXP SP2 and 2003 sp1. DEP simply can be regarded as the underlying security protection mechanism of the operating system, and does not have the function of detecting viruses. However, if there is a virus outbreak that exploits a vulnerability overflow, including local overflow, DEP can protect it.

Turn off data execution protection:

Use Notepad to open the c:\\boot.ini file. If you have a read-only property, you need to remove the read-only property first.

can find multi (0) disk (0) rdisk (0) partition (1) \\ WINDOWS = "Microsoft Windows XP Home Edition" /noexecute = optin /fastdetect

Change /noexecute=optin to /execute. That is:

multi(0)disk(0)rdisk(0)partition(1)\\WINDOWS="Microsoft Windows XP Home Edition" /execute /fastdetect

< BR>/noexecute=optin This is the default switch. Enable DEP.

/execute - disable DEP.

The value of the
/noexecute parameter can be any of AlwaysOn, AlwaysOff, OptIn, and OptOut. When you enable DEP (System Data Execution Protection), /noexecute=optin; when DEP is turned off, /noexecute=optout
/noexecute=AlwaysOn, the entire system is placed within DEP protection. In this state, many programs may not run, and the prompts for reporting errors are different. When
/noexecute=AlwaysOff, it is equivalent to turning off the DEP and EVP functions, and all programs blocked by them can run normally. We can temporarily run a program in this state, but we must pay attention to network security and resume immediately after the work is completed.

add a program exception:

Click "Start" and then click "Control Panel."

In Classic view, double-click "System."

click the "Advanced" tab, click "Properties", then click "Settings."

in the "Performance Options" dialog box, click the "Data Execution Prevention" tab. "Except for Turn on DEP for all programs and services, but I chose to programs and services:"

selection, then click "Add."

in the "Open" dialog box, locate and select the application, and then click "Open."

Click "Apply" and then click "OK." A prompt will appear informing you that the settings must be restarted to take effect. Click "OK."