TO RESET Time from 60 seconds to 300 second (5 minutes)
From CMD (Admin) type
powercfg.exe /SETACVALUEINDEX SCHEME_CURRENT SUB_VIDEO VIDEOCONLOCK 300
ENTER then
powercfg.exe /SETACTIVE SCHEME_CURRENT
TO RESET Time from 60 seconds to 300 second (5 minutes)
From CMD (Admin) type
powercfg.exe /SETACVALUEINDEX SCHEME_CURRENT SUB_VIDEO VIDEOCONLOCK 300
ENTER then
powercfg.exe /SETACTIVE SCHEME_CURRENT
Yes No