XD - bit (CPU function) disabled/not available for Satellite A100-PSAA9

Last week, I bought the laptop Toshiba Satellite A100-847 (Satellite A100-SPAA9) which has an Intel Core 2 Duo, model T7200.

Specifications Intel, this processor (as all Core and Core 2 processors) has the particularity of XD - bit, known in Windows like DEP. I had the unpleasant surprise to discover that this feature is
reported by Windows as unavailable (in hardware). I got the electronic manual on the recovery CD (which is an edition that is older than the printed manual that comes in the package) that I can do this feature
available (for some older models of Satellite) but I couldn't find any option in my BIOS to do this (my BIOS is made by Phoenix, version 2.0).

I really want to know how to make this feature available/active as my processor socket and so is the operating system purchased with the laptop and more than that, this feature is something beneficial - specially designed for security reasons and supported by all modern processors and operating systems.
What do I have to wait for an updated BIOS include this option (to activate the feature XD bit) or that it is automatically set as active/available (instead of disabled/not available)?

I expect a well documented answer from someone who knows what I'm talking about.

Thank you very much.



I know what you're talking about.
Execute Disable Bit (xD-bit) Intel can help prevent certain malicious types of buffer overflow attacks when combined with a compatible operating system.
Disabling malware code procedure is called the extension-> short adj. data protection

Data Execution Prevention (DEP) helps prevent damage from viruses and other security threats that attack by running (executing) malicious code of the locations of memory that Windows and other programs should use. This type of threat causes damage by taking over one or more locations of memory used by a program. Then she spreads and harms other programs, files, and even your email contacts.

Unlike an antivirus program or firewall, DEP does not prevent harmful programs from being installed on your computer. Instead, it monitors your programs to determine if they use the system safely memory. To do this, DEP software works alone or with compatible microprocessors to mark some memory locations as "non-executable".

If a program tries to run malicious code or not a protected location, DEP closed the program and notifies you.
DEP can take advantage of software and hardware support. To use DEP, your computer must be running Microsoft Windows XP Service Pack 2 (SP2) or later version, or Windows Server 2003 Service Pack 1 or later version. Software only DEP helps protect against certain types of malware attacks, but to take full advantage of the protection DEP can offer, your processor must support "execution protection".

The Windows 32 bit (SP2) version supports bit off Execute (xD) so the computer function notebook processor is running in mode of extension (PEA) physical address.
It is a technology based on hardware designed to mark the locations of memory as non-executable.
If your processor doesn't support hardware DEP, you need to upgrade a processor that offers execution protection features.

However, you can see the control panel-> system-> Advanced tab-> Performance settings-> Data Execution Prevention tab.

By default, DEP is enabled only for essential Windows operating system programs and services. In order to protect more programs with DEP, select turn on DEP for all programs and services except those I select.

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