ckchin :
window 8
[HKEY_LOCAL_MACHINE\Hardware\Description\System\CentralProcessor\0]
I modified the cpu name , but after a restart it restore back to original name...
any idea?
When you say CPU name, do you mean the computer name?
If so, you want to go into system properties (press windows key and r key at the same time, then type sysdm.cpl and press enter). It defaults to the computer name tab, click change.