You add the Hyper-V role to your Windows Server 2008 R2 Datacenter server. You see the following error in the Windows system event log: Hype-V launch failed: No-execute (NX) or DEP not enabled on processor 0x0 (check BIOS settings).
You need to be able to start the Hyper-V services.
What should you do?
A.
Remove and re-add the Hyper-V role.
B.
Restart the Hyper-V Virtual Machine Management service.
C.
Enable the Intel XD bit (exclude disable bit) or AMD NX bit (no execute bit).
D.
Enable the Intel Virtualization Technology (Intel VT) or AMD Virtualization (AMD-V).
Hyper-V has specific requirements. Hyper-V requires an x64-based processor, hardware-assisted virtualization, and hardware data execution prevention (DEP).
An operating system with support for the NX bit may mark certain areas of memory as non-executable. The processor will then refuse to execute any code residing in these areas of memory. The general technique, known as executable space protection, is used to prevent certain types of malicious software from taking over computers by inserting their code into another program’s data storage area and running their own code from within this section; this is known as a buffer overflow attack.
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