Why does my computer restart randomly?

Windows PC just reboots - you can do that


Your PC restarts automatically and unexpectedly? If the process happens frequently and randomly under Windows 10 without an additional error message, the cause of the problem is not always easy to identify. We'll show you possible solutions on how to fix the unwanted reboots.

Blue screen with error message

If you receive an error message with a code, you can identify the source of the error relatively easily. Be it an error in the hardware such as the CPU, the RAM or the graphics card, an error code quickly leads to the possible cause. In the course of this, we have already written you several tips + tricks articles that can help you troubleshoot. To do this, follow our appropriate instructions:

If your computer just reboots without warning, deactivate the option to automatically restart to display error messages.

How to turn off the auto restart option

Deactivate the corresponding function so that the system does not restart permanently without an error message.

Restart without error message

If the PC still restarts for no reason and does not display an error code, the problem may be more profound. Defective hardware such as a defective power supply unit, CPU or the graphics card can be possible causes. Follow our step-by-step guide to successively identify possible errors that will cause Windows 10 to restart.


Step 1: Check the power supply

The power supply unit may have a loose connection. Check if the problem persists with a new power supply. You may borrow a power supply unit to rule out this source of error.

Step 2: Uninstall newly added software

The second step would be to fix the malfunction using the software last installed. To do this, uninstall software that has recently been added since the unwanted reboots began. Reinstall the programs one by one to find out whether it was possibly due to faulty software.

Step 3: Update BIOS

Updating the BIOS of your computer can resolve unexpected reboots. Read our article on how a BIOS update works.


Step 4: Perform a system restore

Has the problem started recently? Restoring the system can help here. You can find out how to restore your computer to a restore point here.

5th step: Update hardware drivers and rule out possible defects

Update your drivers in Windows 10 to rule out outdated drivers causing the restart. Also not enough RAM could be the reason that Windows is busy and restarting. In addition, an actual Hardware failure on your hard drive are present. It may be physically damaged. Here you should connect the hard drive to another computer and your Secure data. Then format the hard drive and then restart your computer.

Using the exclusion principle, you can dismantle or remove hardware that is not required one after the other and gradually reconnect it until the error appears again. An example: Your computer runs smoothly, but as soon as the graphics card is plugged in, the PC simply restarts. Now either the drivers are out of date or the graphics card is defective.