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.
Hyper-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.
Enable the Intel XD bit (exclude disable bit) or AMD NX bit (no execute bit).

B.
Remove and re-add the Hyper-V role.

C.
Restart the Hyper-V Virtual Machine Management service.

D.
Enable the Intel Visualization Technology (Intel VT) or AMD Visualization (AMD-V).

Explanation:
Supported Operating Systems: Hyper-V Server 2008
Processor: x64 compatible processor with Intel VT or AMD-V technology enabled.

Hardware Data Execution Prevention (DEP), specifically Intel XD bit (execute disable bit) or
AMD NX bit (no execute bit), must be available and enabled.
Minimum CPU speed: 1.4 GHz; Recommended: 2 GHz or faster
RAM: Minimum: 1 GB RAM; Recommended: 2 GB RAM or greater (additional RAM is
required for each running guest operating system); Maximum 1 TB Available disk space:
Minimum: 8 GB;
Recommended: 20 GB or greater (additional disk space needed for each guest operating
system)
DVD ROM drive
Display: Super VGA (800 × 600) or higher resolution monitor
Other: Keyboard and Microsoft Mouse or compatible pointing device
Note: The actual system requirements will vary based on your system configuration and
hosted guest operating systems.
Note: You must have administrative rights on the computer to install Hyper-V Server 2008
R2.