Product Name HP Probook 4520s
Operating System Windows 8 64-bit
BIOS Version/Date Hewlett-Packard 68AZZ Ver. F.21, 6/13/2012
hi, I'am using HP Probook 4520s and now facing a very serious problem....
My laptop slow down HP Probook 4520s slow down while AC power plugged in.
When unplugged from the AC power it behave normally and work fine.
I removed battery of laptop and AC source plugged in , again laptop is slow down.
So seems like when the Laptop is connected to the AC power system slow down seriously.
From today I'm expiriencing that battery is charging very slowly.
I've updated laptop BIOS to BIOS Version/Date Hewlett-Packard 68AZZ Ver. F.21, 6/13/2012. But problem still exists.
Please help me to resolve this problem.