My computer suddenly turned off and won't turn back on..

Hi,

What do you mean by "cut the camera on"?

What OS is installed in the laptop?

Have you tried starting the laptop with the battery removed and only the charger connected?

If it starts OK allow it to boot all the way to the Windows desktop, let the HDD activity settle down a bit and then shutdown the laptop in the normal manner.

When it has completely shutdown, switch off the charger and disconnect it from the laptop

Reinsert the battery, reconnect and switch on the charger and then turn on the laptop.

If it starts OK allow it to boot all the way to the Windows desktop.

Check the battery charging status and if the battery is charging allow it to fully charge before switching off the charger and disconnecting it from the laptop.