My HP 430 ProBook Laptop was working well with Windows 8 until I opted for Windows 8.1 and that is where the problem started. Whenever i plug in the power cable, the screen turns blue displaying a statement i.e. ".....KMODE Exception error not handled....". When I reboot the PC while on power, the problem still persists. When i unplug the power cable and reboot the PC, the windows will function normally. What is most likely to be the problem? Kindly help.

Hi!

To be certain of the problem, please upload the dmp-files located under "C:\Windows\Minidump" and share with us, these files will contain the information needed to fully find the root cause of the problem.

Without having the dumps, the most likely issue is that there is some software from HP that isn't 100% supported, my best guess is the power-management tool that is shipped with the computer. Try and update this software to the latest version released or uninstall it to see if this helps.

Best regards
Andreas Molin