Common boot up issues are caused by the following: software that was installed incorrectly, driver corruption, an update that failed, abrupt power outage and the system did not shut down properly. Let’s not forget registry corruption or virus’ / malware infections that can completely mess up a computer’s boot sequence

If your laptop won’t power up, a faulty power supply, failed hardware, or a malfunctioning screen could be to blame 

Any failing hardware component in your computer could cause your computer to unexpectedly turn off without warning. If you have recently added any new hardware, remove it from the computer to make sure it’s not causing the problem.

Not enough processing power, not enough hard-disk space, CPU overheating, update your Operating System, Driver issues or Hardware issues will keeps freezing.

Dust, dirt, hair, and grime can hinder your laptop’s fan, causing it to struggle to cool the device down. There are problems with internal hardware, such as an old battery or decaying thermal paste, a substance that helps prevent your computer from overheating

The USB device may become unresponsive because of a race condition in the Selective Suspend feature. The Selective Suspend feature suspends the USB device to efficiently maintain battery power by enabling the computer to turn off the USB device. However, sometimes this feature may not correctly wake up the USB device.