Error configuring Virtual Machine on CentOS 6
 

Error polling connection 'qemu:///system': internal error Cannot find suitable emulator for x86_64 :- Virtual Machine Error CentOS.

Either your CPU doesn't support VT Technology or VT Technology is disabled in BIOS.

Type

cat /proc/cpuinfo

If you don't see the vmx flag in the output, you can't use KVM.

Regards - Phil

Hi Philix, My CPU Core 2 duo E8400 Supports VT-X & VT-D .Still problem here ...

[root@CentOS-Server ashutosh]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
stepping : 10
cpu MHz : 2000.000
cache size : 6144 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts tpr_shadow vnmi flexpriority
bogomips : 6000.19
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual

Your CPU definately supports virtualization.
Even though the mvx flag is present, I still think there is a good chance that Virtualization is disabled in BIOS. Go through all the BIOS menus carefully, hopefully you will find something.
Philx66