Zkus něco takového:

REM Disabling all Sleep Parameters
@echo off
powercfg /x -hibernate-timeout-ac 0
powercfg /x -hibernate-timeout-dc 0
powercfg /x -disk-timeout-ac 0
powercfg /x -disk-timeout-dc 0
powercfg /x -monitor-timeout-ac 0
powercfg /x -monitor-timeout-dc 0
Powercfg /x -standby-timeout-ac 0
powercfg /x -standby-timeout-dc 0
Pause