My Computer Restarts Automatically - Reasons & Solution

We have discussed many hardware related issues on this blog. This tutorial tells one of the common computer issues, unexpected automatic restarting of a computer. Once I faced this situation where my computer rebooted automatically without providing any warning and I lost every unsaved works. For a week this issue continued and at last I fixed. I believe having a guide for those who face the same problem can be very helpful to identify the reasons for the automatic restarting of their systems. If you can identify why your PC is rebooting suddenly without warning, you will be able to solve it very easily.

Reasons for Unexpected Automatic Reboot of Your Computer

Here we check common reasons for the issue. Some of them are software conflicts, hardware issues and virus infection. Let us check carefully why should a computer restart without giving any warning.

1. Software /Driver Conflicts
   
   When your PC acts strange, first verify the last installed software or driver on your computer has no compatibility issues. After installing new software or driver on your PC, if it has any compatibility issues, you may face this issue. If you think the automatic rebooting issue started after installing any new software, you need to uninstall the software from your PC either by add/remove programs or by the built in software removal utility. If the issue persists even after uninstalling the software, you can perform a system restore to a date before the day when the driver was installed.
   
   
   1. Uninstall the recently installed software
      
      
   2. Perform system restore to an old date
   
   
2. Hardware Issues
   
   If there are no software compatibility issues on your system, you may check for possible hardware issues. Here is a list of potential hardware problems that can make your PC restarts automatically.
   
   
   • Heat related issues
     
     Brand new Laptops and PCs are designed in a way to shut down or restart automatically if the processor heat exceeds a certain level. Make sure your laptop does not have any heat related issues. Visit the link below to protect your computer from overheating.
     Protect Your Laptop From Overheating
     
     
   • Corrupted system memory
     
     If the RAM modules in your PC are corrupted, that may cause automatic system reboot. To verify it you should start your PC with another piece of RAM and check for the issue.
     
     
   • Dust particles in your system cabinet
     
     Presence of dust particles in CPU may trigger automatic system restart. It is a good practice to clean system cabinet to make your PC free from dust particles.
     
     
   • Test Power Supply
     Faulty power supply to your PC can make sure your computer either shut down or reboot automatically without warning. Test it and if you find any issues with power supply, replace it immediately.
     
     
   • Possible loose connections
     
     It is also advised to disconnect hard disk, DVD drive from motherboard and reconnect to avoid any loose connection.
   
   
3. Possible virus infection
   
   There are some computer viruses powerful enough to reboot your computer without your permission. It is better perform a virus scan on your computer using a reputed Antivirus software.
   Industry's Top Rated Best Free Antivirus With Download Link
   

Quick Fix to Automatic System Reboot Issue

If you are desperately looking for a quick fix to automatic rebooting issue, you can tell your computer to don't restart automatically for any system error. By default Windows set automatic system reboot on every system failure. Though this option is for preventing further damages on your system, it is really frustrating to see unwanted system reboot for smaller issues. It is better you have the control to reboot your computer instead of automatic reboot by your computer without your permission. In case if you want to disable automatic system reboot on system failure set on your computer, you can disable it under Startup and Recovery. You will see a checkbox to stop Automatic Reboot on Startup and Recovery settings window.

1. Windows 8 & Windows 7
   
   
   1. Click Windows Start
      
      
   2. Right Click Computer in Start menu and click Properties
      
      
      
   3. Click Advanced System Settings
      
      
      
   4. Click Settings button under Startup and Recovery
      
      
      
   5. Uncheck Checkbox near Automatically restart
      
      
   
   
2. For Windows XP
   
   
   1. Right click on My Computer icon
      
      
   2. Click the Properties
      
      
   3. Click on the Advanced tab.
      
      
   4. Click on the Settings button under Startup and Recovery.
      
      
   5. In the Startup and Recovery window uncheck the Automatically restart check box.
      
      
      Click OK.

PS: It is not a good practice to keep the checkbox at Automatically restart unchecked without fixing the exact reasons for the system failure.

Other Computer Booting Issues

1. Cannot Start My Laptop - Disk Boot Failure
   
   
2. Hard Disk S.M.A.R.T Command Failed
   
   
3. Getting 3 Beeps as Boot Error code and Laptop Failed to Boot
   
   
4. How to Check Frequency Of RAM Installed In Your Laptop

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