Serial Number (system): Not Available??
Hi there... Does anybody know why my Serial Number (system) says: Not Available??
When I open About This Mac, then click More Info and in Serial Number description there's nothing. Then I click System Report and in Hardware overview I find this: Serial Number (system): Not Available
Don't know what's exactly wrong and would like to fix that.
Tanks
MacBook Pro, OS X Mountain Lion (10.8.4)