#1 remove the battery & clean pins reinsert
it works not usee laptops for long term.
#2remove the battery plug the adapter
Press the button,
if laptop turned on , then problems with battery.
#3 diagnosis screen issues laptop working perfectly
But screen not turning on.
:Use external monitor to know it using HDMI (liitle settings neeeded) or display cord.
check the laptop cpu fan running or not.
3.1 check the broken panel that caused damage to the display wiring.
early symptoms: screen flickering
laptop screen costs 30% of laptop cost.
#4 check dead harddisk
incase of dead hard disk, laptop won’t turn on,
check early symptoms of 100% hard disk.
#5 check RAM with beep sound
if laptop /pc not turning on with beep sound, then mist probably with ram just remove /replace new ran.
incase two rams in the slot, just remove the one and start turning on the laptop.
#6 the mother board failure
any water dipped into the mother board from laptop keyboards also causes failure,
high heat may caused the damage to the processor/mother board.
Early symptoms : high temperature & hanging due to heat, sudden shutdowns.
integrated graphic card failure in the processor.
#7 checking laptop adapter voltage or short-circuit damage
If you have voltmeter check the voltage of power cord & ac adaptor,
Incase of computer check smp by attaching two wires .
#8 incase windows not turning on
we deal with safe mode with command prompt,
My laptop worked fine with ubuntu after windows install it failed,
Laptop /pc shutdown randomly
1st case: over heating /heat caused over work load.
Know the cpu operating temperature.
cooling system on laptop: thermal paste orlack of airflow due to dust.
solution: clean the dust & appy thermal paste to cpu.
install speed fan, cpuz to monitor the temperature status.(mostly ideal I guess)
Turn on the laptop /pc enter into bios mode. Keep
It for few hours if system not restarted.
Then update the drivers for hardwares.
Chipset drivers. Gpu,usb etc
Bios update (not befecial)
my case dell i3 laptop shutdown when it seems like over heated or overloaded.
When I watch movies it works.
When I render a video using Adobe premiere Pro it crashes.
Windows 10 event viewer service stopped,
Device not ready.
3rd Checking hard disk health (probable case)
1st: right click on drive, properties>> tools>> check now.
diskdriver get status
chkdsk X: /f” and press Enter button. Replace X with the letter of your hard drive partition
also bad sectors hdd using minitool, easeus etc lot of time it takes.
Use: crystaldiskinfo (software)
as older hdd gets it may has more bad sectors.
Scan hdd with softwares like hdd status.
Cleaneup with cc cleaner / fix registry errors
I don’t think registry errors cause random shutdown.
Is a fault memory module RAM cases random shutdown
Download software boot from usb.
Check it for memory errors.
If you bought a used/ refurbished laptops,
you the cases shows another model & mother board or windows sys info shows other model.
Windows stop code critical process died