Computer randomly turns off is not an unusual issue for most of the users. But, the point is why does this inconvenience occur. You may find the computer shutting down for no reason. It can happen due to the presence of viruses or malware on the system. This problem can occur due to corrupted or faulty drivers and many more related factors.

Why Computer Randomly Turns Off?

The computer may turn off randomly if it is passing through the following issues:

  • Computer randomly turns off due to overheating of the processor or the system itself.
  • Glitches in the USP may prevent the PC from connecting to the power supply.
  • Your computer turns off randomly if the fast startup is enabled on your computer.
  • Due to the internal glitches in the Operating System is another cause of this abrupt shutdown.
  • An outdated BIOS or other drivers may as well trigger this issue to a large extent.
  • Computer randomly turns off due to corrupted or damaged sectors in the Hard Disk Drive.
  • Though sleep mode helps to preserve power, it can occasionally create problems with your computer.
  • This issue sometimes arises from advanced power settings.

Tricks To Fix Why Computer Randomly Turns Off

Connect The PC To Another Power Supply

Change the source of power supply for your PC to test whether the problem persists or not. If the PC continues to shut down unexpectedly, then check for other glitches in the system.

Check Your PC For Virus

Go to the ‘Start’ menu and search for ‘Windows Defender Security Center.’ Click on ‘Virus and threat protection’ and select ‘Advanced Scan.’  Now, tap ‘Full Scan’ and click on the ‘Scan Now’ button. Use a powerful antivirus tool to remove the virus from your PC.

Inspect The USP And The Operating System

Take assistance from a professional technician to check the USP and the Operating System for glitches. Otherwise, fixing the errors manually is quite arduous and a risky affair.

Turn Off Fast Startup

  1. Open the Control panel and choose ‘Power options.’
  2. Then click ‘Choose what the power buttons do’ and select ‘Change settings that are currently unavailable.’
  3. Navigate down to the ‘Shutdown Settings,’ uncheck the ‘Turn on fast startup’ option and save the changes.

Update The BIOS

  1. Plug in your computer to a source of power and extract the BIOS file.
  2. Now plug a USB flash drive into the system and copy the BIOS file into the flash drive.
  3. Then the BIOS page instructs you to restart the system.
  4. Follow the on-screen instructions and backup the BIOS files.
  5. Press the BIOS key to get the update option.
  6. Again act according to the on-screen instructions to update the BIOS.

Check The Drivers

  1. Open Device Manager and locate ‘Display adapters.’
  2. Then right-click on GPU and choose ‘Properties’ from the menu
  3. Click on ‘Details’ and copy the first line on the clipboard.
  4. Go to the ‘Drivers’ tab and choose ‘Uninstall driver.’
  5. Visit the driver’s provider site to install the latest drivers.

Turn Off Sleep Mode

Go to ‘Settings’ and choose ‘System.’ Then select ‘Never’ for both ‘Screen’ and ‘Sleep.’ If you do not want to turn off the sleep mode entirely, then set the PC on 5 hours timeout, so that, the PC goes to sleep after a long duration.

Check The CPU Temperature

You can use a reliable tool available on the internet to check the temperature of the CPU. If it indicates that the temperature is alarmingly high, then change the overclock settings to default. Clean the CPU cooler on your desktop and use a cooling pad as well.

Scan The HDD

  1. Right-click on the ‘Start’ menu and run the Command Prompt.
  2. Type the ‘wmic disk drive get status’ command and press ‘Enter.’
  3. If you find the word, ‘OK’ next to every partition, then the hard disk is alright. But, the words, ‘unknown,’ ‘caution,’ or ‘bad’ states that the hard disk has some problems.

Perform A Clean Re installation

At first, backup all the data stored on the PC. Then type ‘Recovery’ in the search field and press ‘Enter’ to get the ‘Recovery Options.’ Go to ‘Reset this PC’ and select ‘Get Started.’ Click on ‘Remove everything’ and wait until the computer restarts automatically.

Change Advanced Power Settings

  1. Open ‘Power Settings,’ choose ‘Default power plan’ and select ‘Change plan settings.’
  2. Click on ‘Change advanced power settings’ and change the value of ‘Processor Power Management’ to zero in ‘Minimum processor state.’
  3. Choose Hard Disk and select ‘Turn off hard disk after.’
  4. Click on the ‘Save’ button and exit from the power settings.

You just choose the correct method and fix why the computer randomly turns off, in no time.