Why my laptop is restarting again and again?

Why Does My Laptop Always Restart Unexpectedly?

Unexpected laptop restarts are caused by some sort of unrecoverable hardware or software problem. Software related issues are no different for laptops than desktops; they can usually be resolved by updating, restoring or removing the offending program. However, laptops differ with hardware-related issues because they don't feature as many interchangeable parts as desktop computers.

Hardware Compatibility Issues

Hardware compatibility issues can cause a computer to restart at seemingly random intervals; on a laptop, RAM and USB devices are the most likely causes of such compatibility issues. Two different RAM sticks installed in the same computer may cause memory-usage problems that trigger reboots. Sony recommends removing any additional RAM you have installed in a computer if you are experiencing unexpected restarts. Removing any connected USB devices may also resolve the problem.

Dust Problems and Overheating

Laptops do not intake as much air as desktops, but it's enough to bring in dust and debris to cause problems. Dust and debris can restrict airflow and cause the computer to engage an automatic shutdown if the system gets too hot. The laptop should shut down if it overheats, but the device could be set to restart if it gets too hot. System fan failure and restricted airflow can cause the system to overheat. Blast dust out of the laptop's vents with compressed air to improve airflow. In addition to restricting airflow, dust and debris can interfere with component connections. Try blasting out the ventilation port and device connection ports to remove interfering dust. Advanced users can try removing the RAM and hard drive to get at the related connectors and clean them with compressed air.

Critical System Error

A program with bad code or an error in the operating system itself could knock down the system. The computer may be configured so that instead of displaying an error message it just restarts. Try uninstalling any recently installed programs and rolling back recent program updates to stop program-related restarts. HP recommends rolling back recent Windows Updates and not reinstalling them if encountering unexpected restarts. Additionally, running a system refresh or system restore may phase back the computer to a point where Windows and other programs did not cause the reboot error.

Program Triggered Restarts

Some computer programs will force the computer to restart after running automatic updates. Disabling automatic update features should stop the unexpected restarts. While system updates are a legitimate use of the restart feature, programs like viruses and other malware may trigger timed restarts to inconvenience the user. Running full system scans with updated anti-virus programs can remove such malware from the computer.

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