only showing 1 core

[AAppole]

i have amd a10 7800 quad core but its only showing 1 core on task manager and cpu z and amd overdrive
msconfig too wont show more than 1 core. wtf i do !??!?!?! HELP ME

 

[CountMike]

Check BIOS. It may not be set properly.

 

[Dipesh_5]

I recently had this problem . Reinstalled my windows and update Microsoft Framework . Rebooted pc AND BOOOOOOOOOOOM FIXED!!!!!!!

 

[CountMike]

Culd have tried another thing.
Msconfig > Boot > Advanced options > Number of processors. Either unmark or set to 4.