Open REGEDIT and go to --
My Computer\HKEY_CURRENT_USER\Control Panel\PowerCfg
- Set the CurrentPowerPolicy variable to 0 (zero).
- Next, go to the Power Policies subfolder, and rename at least the first one on the list to "0". (I renamed mine as 0, 1, 2, and 3.)
- As long as there is a Power Policy 0, everything seems to work -- even if the next policy number say, 12.
Always Make a backup! of your Registry before you make changes!