Why Does Windows Restart Without Warning?

Why Does Windows Restart Without Warning? | Cpugpunerds.com

We’ll discuss anything from unexpected reboots caused by major system faults to stealthy automated updates. If you’ve ever been perplexed by your computer’s ability to reboot on its own accord, then you should read on.

So why does it happen in the first place?

It is because of the automatic updates your system downloads, which requires the System to restart to run the updated versions properly. Another primary reason is the severe system threats/failures that occur when a computer detects a virus or threat to your data and immediately restarts without warning.

There are a few different ways your systems could crash without warning. Your computer may restart unexpectedly for several reasons, such as a hardware breakdown, excessive heat, shutdown issues, or a faulty or subpar Windows update. However, you need to figure out its cause before you can fix this mistake.

Here are the primary reasons why your Windows restarts without warning:

  • Automatic Updates

The automated update function is frequently to blame for unexpected restarts. It will automatically check for updates if you want to keep your Windows 10 installation safe and running correctly. To install critical updates, it may unexpectedly restart your computer if it discovers they require it.

  • Serious System Failures

Windows 10 has built-in safeguards to protect your computer from viruses and hackers. When an operating system encounters a critical error that poses a threat to the integrity of the System, it may choose to perform an immediate restart. These errors might be because of anything from driver difficulties to memory issues and require prompt attention.

  • Maintenance of the System

Windows 10 is proactive when it comes to keeping your computer healthy. In the background, it checks for program incompatibility, optimizes your hard drive, and scans for malware. If Windows determines that a restart is necessary to finish any of these tasks, it may do so automatically.

  • Installation and Uninstallation of Software

When software is installed or removed, it may be necessary to restart the computer. Restarting the computer may require some software updates or installations to take effect. Windows 10 may prompt you to restart your computer after making changes, such as installing or removing programs.

  • Instability of the System

Reboots are sometimes necessary due to underlying system instability or conflicts. In such cases, digging deeper to find the source of the issue and executing a permanent fix may be required.

  • Hardware and Power Changes

Windows 10 may restart if the power settings or hardware configuration are altered. It may involve tinkering with sleep and hibernation modes and other software and hardware settings, such as those for video cards. A restart of Windows could be necessary for the modifications to take effect.

  • User-Requested Reboots and Restarts

A user-initiated activity could result in an unexpected restart. For instance, Windows 10 may not warn you before restarting your computer if you want to do so manually to address a specific issue.

  • Software Bugs and Glitches

Software defects or glitches can cause unexpected restarts. However, they are uncommon. When Windows detects a problem in an application or a system component that can only be fixed by restarting, it may take the initiative to do so.

  • Scheduled Maintenance

Windows 10 can restart or perform other maintenance at predetermined intervals automatically. Updating and optimizing your System this way is essential, but it can take you by surprise if you need more preparation.

  • Driver Updates

For hardware to appropriately interact with software, drivers are required. Windows 10 may seek out updates if it finds outdated or incompatible drivers. This procedure may require a restart to implement the updated drivers properly.

How to Fix Windows Restarting Without Warning?

You can fix this issue by turning off the automatic restart feature on your Windows computer, which makes the Windows restart without a warning. Another major fix is utilizing the Windows memory diagnostic tool, which helps to eliminate any issues with your hardware components.

Are you sick and tired of the sinking feeling you get when your computer suddenly restarts? It’s not just you. We’ve all been there: deep in the middle of an important assignment, a movie, or a game, when suddenly the computer reboots.

Here’s how you can fix the Windows restarting without a warning issue:

Disable the Automatic Restart

If a Software or Driver problem is the cause of your System restarting automatically, you can turn off the feature with this technique.

  • Launch This PC Desktop application, right-click, and select Properties to access the System settings. You can find the System and Security option in the Control Panel; select System from there.

Why Does Windows Restart Without Warning? | Cpugpunerds.com

  • In this Window, select the option labeled “Advanced System Settings.” To modify your startup and recovery options, navigate to the Advanced menu.

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  • After accessing the Advanced menu,  open the Startup and Recovery Settings. Now, you must disable/uncheck the Automatic Restart under system failure. After unchecking, click on OK to apply the changes.

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If you get a Stop Error or Blue Screen of Death, your computer will no longer automatically restart. This feature has several advantages. The problem message appears on the screen, so writing it down will help you troubleshoot later.

Utilize the Windows Memory Diagnostic Tool

It’s possible that hardware failure is to blame if your computer randomly restarts itself. If you suspect a RAM-related issue is to blame, you can use Windows’ built-in Memory Diagnostics utility to investigate. Since Random Access Memory (RAM) is crucial to the smooth operation of your computer, you should run a Windows memory test anytime you notice any issues.

  • Launch Windows Memory Diagnostic by searching for it in the taskbar’s search box. Another option for starting this program is to use the Windows key plus R, then type “mdsched.exe” into the run box and hit enter.

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  • Select Restart now and check for problems in the next Windows dialogue box. To use the diagnostic software, a computer restart is required. You will be unable to use the computer while the application is executing.
  • Windows will run a RAM test after the computer restarts. The findings will indicate RAM problems, if any; otherwise, “No problems have been detected” will be shown.

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Disable the Fast Startup Power Option

Try turning off Fast Startup to see if it helps your Windows 10 computer. Most PCs have this energy-saving setting activated by default. Saving power has benefits and drawbacks, such as the possibility of an unexpected device restart.

  • Locate the Control Panel by clicking the Windows icon in the taskbar. You can use the search results to launch the application.

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  • Go to Settings and then Hardware and Sound > Power Options. Ensure you’re viewing this in either Large or Small icons mode.

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  • Select the link that reads “Choose what the power button does” from the menu on the left. In a moment, you’ll be taken to a new page.

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  • You need to click the “Change settings that are currently unavailable” link before making any alterations. You’ll have more freedom once you do this.

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  • Be careful to deselect the box labeled “Use fast startup (recommended).” After that, restart your computer after saving the changes.

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Use Command Prompt to Check Hard Drive

Performing a disk check is like taking your computer for a checkup. You can keep your system working smoothly and guard against data loss and performance issues by scanning your hard drive for errors.

  • Launch an elevated command prompt with admin privileges. In Windows, open the command prompt by typing cmd and then right-clicking on it to select Run as Administrator.

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  • Type “chkdsk /f /r” at the command prompt to fix this. To proceed, press Y.
  • Check Disk Utility (CHKDSK) should be executed from the link provided to correct file system errors. Wait for the preceding steps to finish, then restart your computer again.

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Perform a Malware Scan

Computer restarts without warning may be due to a virus or other malicious software that has infiltrated your System and corrupted critical system files. You may quickly eliminate the virus triggering the restarting by performing a complete system virus/malware scan.

Therefore, run an antivirus scan and remove any malicious software or viruses that are found. Windows Defender, Microsoft’s built-in malware scanning program, may do the job if you don’t have any other antivirus software. When using Windows Defender, it’s best to perform a full system check rather than a quick one.

  • To access the Windows Defender Security Center, open the Defender Firewall Settings. Go to the Windows Security page.

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  • Choose the “Windows Defender Deep scan” option in the “Protection” tab. The last step is to select Scan Now.

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  • If Windows Defender detects any malware or viruses during the Scan, it will eliminate them immediately upon completion. Finally, try restarting your PC to see if that resolves the Windows computer restarts problem unexpectedly.

Why Does Windows Restart Without Warning? | Cpugpunerds.com

Update your Drivers to the Latest Versions

Some of your drivers may be corrupt, missing, or outdated. Users who updated the drivers for their video cards, motherboards, and audio hardware said the issue was resolved. Use a driver updater tool, such as Driver Easy, if you’re not confident updating your drivers manually. With the click of a button, this program will thoroughly scan your computer and install any necessary driver updates.

  • To open Device Manager, hit the Windows key plus the letter X on your keyboard. To update a driver, right-click it. From the menu that appears, select Update Driver.

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  • Choose the option that reads “Search automatically for drivers.” By doing so, Windows can use the internet to find the most up-to-date drivers for your hardware. You may be prompted to choose a driver if numerous updates are discovered.
  • After the driver installation, you need to restart the System for the modifications to take effect.

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Update the Graphics Driver

Obsolete or corrupt display drivers can cause the Windows restart issue. The Display area of the device management is where you’ll want to be to update the driver for your monitor. On the other hand, Display drivers may also be available on the manufacturer’s website. After updating the drivers, you should verify that the issue has been resolved.

  • To access Device Manager, use the Windows key plus R and type “devmgmt.msc” before pressing Enter.

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  • Then, under Display adapters, pick your Graphics Card, click the right mouse button, and select Enable.

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  • After you’ve done this, right-click your graphics card and choose “Update Driver” from the menu that appears.
  • Choose to have it “Search automatically for updated driver software” and let it complete the operation.

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Update the Windows Group Policies

Is Windows 10 or 11 still prone to random restarts? Adjusting your Group Policies could be the answer to your troubleshooting prayers. It is especially true if you imported your group policies incorrectly.

  • To access the elevated command prompt, right-click the Start button and choose Command Prompt (Admin). To continue as administrator, click Yes when prompted by UAC.

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  • To run the “gpupdate” command, type it into the prompt and press the Enter key.
  • After the command has finished modifying your Group Policy, you may see if the random reboots have stopped.

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Disable the Windows Firewall

A third-party firewall or antivirus program can cause this Windows restart issue. Turning off your Firewall and temporarily disabling your antivirus software will help you determine if these programs are the source of the problem. Finally, you should see if the issue is still there or not. Disabling security software and firewalls helps to fix this issue for many users.

  • To access the Settings menu, press the “Start” button, type “Control Panel,” and select the result. You can access “System and Security” from the Control Panel.

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  • The Windows Defender Firewall is below the “Security and Maintenance” tab. After locating the option, click on it.

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  • Now, on the left sidebar, you will see an option for “Turn Windows Defender Firewall on or off.” Open this option.

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  • Select the option to turn off the Firewall on internal and external networks.
  • Select “OK” to apply the changes. You will get a warning from Windows that disabling the Firewall may expose your System to attacks. If you’re sure, click “Yes.”

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Run the SFC Command

If you’ve already tried everything else and nothing has fixed the problem, consider using the System File Checker. Windows has an in-built tool for repairing damaged system files.

  • Select the magnifying glass icon in the taskbar to activate the search function. As a keyboard shortcut, you can press Windows + S.

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  • In the search bar, type Command Prompt. Select it from the results list, then select Run as Administrator from the context menu.
  • Press Enter to run the command “sfc /scannow” you just typed in. Additionally, hold off on making changes until SFC completes its Scan. In the event of a discrepancy, the tool will restore system files and correct any associated issues.

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Perform a System Restore

Restore your PC to a previous functional configuration if you’re still experiencing the Windows computer restarts without warning issues. With System Restore, you may roll back your computer’s settings to a point when everything is running well. However, restoring your device will be impossible if you don’t have at least one System restore point. If a restore point exists, using it will return the computer to its previous functionality without erasing your data.

  • To access the Start Menu, press the “Windows” key on your keyboard. Enter “Create a restore point” into the search bar and pick the appropriate result. Click the “System Protection” tab in the “System Properties” window that opens.

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  • Select the “System Restore” option and then click the button. The System Restore Assistant will open.

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  • When prompted by the System Restore wizard, select “Next.” A list of restoration points will appear. Pick a backup from the list corresponding to the given date and description. Select “Show more restore points” to get further customization choices.

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  • Select a previous save point, then hit “Next.” Check the restore point details to be sure it’s the one you want to use.
  • To initiate a System Restore, select “Finish” and follow the on-screen instructions. You will get a message that says System Restore cannot be stopped once it has begun. If you’re sure, click “Yes.”

Why Does Windows Restart Without Warning? | Cpugpunerds.com


It’s annoying when your computer randomly reboots, especially if you’re in the middle of anything important or entertaining. These unexpected restarts can throw off your concentration and confuse you. In this manual, we investigate the reasons behind the problem.

We have looked into the various reasons for your Windows to restart unexpectedly, including significant system faults and automatic upgrades. Most of the time, automatic updates are blamed for these random reboots. Windows performs regular updating checks to keep your System secure and running smoothly. Your computer may require a restart to apply necessary updates if they are detected.

However, urgent restarts can be triggered to safeguard your System from significant problems or dangers like malware. Software updates, hardware upgrades, user actions, and routine system maintenance may have caused this problem. We have presented practical responses to these issues.

We’ve discussed various methods, such as preventing automatic restarts, using diagnostic tools, updating drivers, modifying Group Policies, and temporarily turning off firewalls. With this information, you may take command of your computer once more and enjoy its benefits the most.

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