How to Fix “Unknown Hard Error” Error in Windows 10/8/7

Your PC hangs while playing a game with Windows 10 and shows you the message «Unknown Hard Error«? Many people have been having this problem with an error message called Unknown Hard Error suddenly appearing on the Windows 10 screen when they are playing a game, launching any application or performing other tasks. Would you like to resolve this fault?

This error is related to corrupted system files, incorrect Windows registry (due to some software changes), hard disk problems or device driver conflict. hardware, etc. In most cases, there are possible solutions which we will leave here.

How to Fix “Unknown Hard Error” in Windows 10

Here are the possible solutions to fix Unknown Hard Error on your PC or laptop:

• First, if you notice that the problem started with a recent hardware or software installation, temporarily uninstall them and check if this fixes the “Unknown Hard Error” if a device driver conflict is causing the problem.
• Also disable your security software (antivirus), if installed, to check and make sure that the security application is not blocking the application from starting with an unknown hardware error.
• Uninstall recently installed third-party apps to check compatibility without causing errors.

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Solution 1: Install cumulative updates

Microsoft regularly releases Windows updates with bug fixes to address a security hole created by third-party software. Install the latest Windows cumulative updates to fix this issue sometimes.

• Step 1:: Open the application "Configuration", then click Update and security, after in Windows update.
• Step 2:: Then click Search for updates to download the Windows update from the Microsoft server.
• Step 3:: Finally, restart your PC or laptop to apply them and check if that fixes the error Unknown Hard Error on Windows 10.

Solution 2: Perform a clean boot

This is the most important step to diagnose a problem if any third-party application or startup service is causing Unknown Hard Error Windows 10. Once you know the root cause of this problem, you can easily fix it.

You can perform a clean boot in Windows 10/8.1/7 and start the computer with a minimal set of drivers and startup programs:

• Step 1:: Escribe msconfig in the frame Start search and press ENTER.
• Step 2:: This will open the Configuration utility of the System.
• Step 3:: Now, in the dialog box System settings, go to the tab Services.
• Step 4:: select the check box Hide all services Microsoft and then click the button Disable all.

• 

  Step 5:: Then follow the tab Runand click on the link Open Task Manager To the place.

• Step 6:: In the Run tabat the Task Manager, select each startup item one by one and then click the button
• Step 7:: That's it, click on Apply and restart Windows, check if the error persists.

Performing a clean boot will fix this. explorer.exe Unknown Hard Error In Windows 10, you need to enable all services one by one to determine which one is the real culprit.

Solution 3: Run the DISM command

As stated above, corrupted or faulty system files in Windows cause various errors including «Unknown Hard Error«. We recommend you run DISM Command with System File Checker to help scan, repair and remediate these corrupted files. Follow these steps:

• Step 1:: To execute the command DISM and the utility SFC, open the symbol of the system with administrator permissions.
• Step 2:: Enter instruction DISM / Online / Clean-Image / Health Restore and press ENTER to run the command.

This will check the system image for component store corruption, automatically perform restore operations, and write these corruptions to the log file. This may take up to 10 a 15 minutes several hours to complete, depending on the level of corruption.

Solution 4: Run System File Checker

To use the system file checker, you need to do the following:

• Step 1:: Once the scanning process is completed in solution 3, again in the same command prompt window type the instruction command SFC / scannowand press the key ENTER to start the utility System file checker.

• Step 2:: This will run a scan of Windows 10 for corrupted system files. The utility sfc automatically repairs them from a compressed folder located in %WinDir%System32dllcache.
• Step 3:: Wait until the scanning process is 100% complete, then restart windows and make sure the Unknown Hard Error is gone.

Solution 5: Run Check Disk to find disk errors

You can run the command chkdsk at the Command Prompt to make sure it's not a hard drive error. This is especially true for unknown hard files sihost.exe and ctfmon.exe. You can also run chkdsk with additional options added to check for disk errors and fix them.

• Step 1:: Escribe cmd when you search in the start menu.
• Step 2:: Right-click Symbol of the system and select the option Run as administrator.
• Step 3:: Here you must enter the command chkdsk C: /f /r and press the key ENTER.

NOTE: : Here is the chkdsk command which means check disk for errors. C is the letter of the drive where Windows is installed. Icon » / f « This parameter tells CHKDSK to correct the errors found; » / P « Tells you to scan the disk for bad sectors and restore readable information.

When the command returns a response saying that chkdsk cannot be started because the volume is in use by another process do the following:

• Step 1:: Escribe Y to schedule this volume to be checked at next reboot.
• Step 2:: Restart your computer to run chkdsk.
• Step 3:: Now, the utility Check disk It will scan your hard drive for possible errors and then automatically fix any errors it finds.

Solution 6: Update your video driver

If the installed device drivers are outdated, corrupted, or incompatible with the current version of Windows, an error will occur. Unknown Hard Error. Especially if you get this error while playing a game, it is mostly due to an outdated display driver. Here is how to fix it:

• Step 1:: Open the device administrator  msc.

NOTE: - This will list all installed device drivers. Here's a look if there's a driver with a yellow exclamation mark.

• Step 2:: Try updating or reinstalling the driver. Specifically reinstall the display driver by uninstalling the currently installed driver from the device manager.
• Step 3:: Visit your device manufacturer's website (for Android users). portable: dell, hp, Lenovo, Asus, etc., and if you are using a desktop PC, visit your motherboard manufacturer's website).
• Step 4:: Download and install the latest display driver.
• Step 5:: Restart Windows and check for more unknown serious errors.

NOTE: : Also, if the problem occurred after you recently updated Windows 10 to version 1909, try the option Roll back Windows to the previous version. If there is no revert option, use the function System Restore to revert changes to a previous working state. Which basically solves the problem.

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As you will see, the error “Unknown Hard Error” in Windows 10/8/7 is very easy to solve if you follow these steps shown, if the fault still persists, we recommend that you visit a service technical specialized and trustworthy. We hope we have helped you.