Edit file File name : x86_Nehalem.xml Content :<cpus> <model name='Nehalem'> <decode host='on' guest='on'/> <signature family='6' model='26'/> <!-- 0106a0 --> <signature family='6' model='30'/> <!-- 0106e0 --> <signature family='6' model='31'/> <!-- 0106f0 --> <signature family='6' model='46'/> <!-- 0206e0 --> <vendor name='Intel'/> <feature name='apic'/> <feature name='clflush'/> <feature name='cmov'/> <feature name='cx16'/> <feature name='cx8'/> <feature name='de'/> <feature name='fpu'/> <feature name='fxsr'/> <feature name='lahf_lm'/> <feature name='lm'/> <feature name='mca'/> <feature name='mce'/> <feature name='mmx'/> <feature name='msr'/> <feature name='mtrr'/> <feature name='nx'/> <feature name='pae'/> <feature name='pat'/> <feature name='pge'/> <feature name='pni'/> <feature name='popcnt'/> <feature name='pse'/> <feature name='pse36'/> <feature name='sep'/> <feature name='sse'/> <feature name='sse2'/> <feature name='sse4.1'/> <feature name='sse4.2'/> <feature name='ssse3'/> <feature name='syscall'/> <feature name='tsc'/> </model> </cpus> Save