Troubleshooting the “SiHost.exe Hard Drive Error” Problem in Windows 10 PC

The sihost.exe file is an important software component of Microsoft Windows. It is an important part of the Shell host infrastructure and should not be removed. In recent years, many Windows 10 users have encountered the “sihost.exe unknown hard error” error when using Cortana or after installing Windows updates.

After analyzing numerous user reports and articles, we can conclude that the sihost.exe system warning error may be caused by recent software changes. Also, corrupted system files and hard drive errors can cause sihost.exe unknown hard errors.

What causes Sihost.exe Unknown Hard Error in Windows 10?

Damaged system files: Some system files on your computer may be corrupted after a memory failure or storage error. If the system files are damaged or have been corrupted, you may not be able to use the Start menu and Cortana, and you may get an “Unknown Hard Error” when you try to do so.

Applications/services running in the background: some applications and services can run in the background, preventing Sihost from working efficiently and causing Sihost.Exe Unknown Hard Error. We recommend that you try to close these background applications and see if this helps eliminate the error message.

Outdated drivers: Sometimes your computer drivers are outdated, which prevents the system from working efficiently. Therefore, we recommend that you manually check for outdated drivers or run a driver scanner, which will let you know if any drivers are corrupt or need to be updated.

Damaged partitions: If the partitions on your computer contain bad sectors or have not been recently cleaned and optimized, you will get a Sihost.Exe Unknown Hard error when trying to start Windows on these partitions. Therefore, it is recommended to try restoring the damaged partitions and then see if this solves the problem.

Windows Explorer failure: There may be a glitch in Windows Explorer on your computer that is preventing it from working efficiently. A simple restart should solve most of these problems.

Damaged account files: some of your personal account files may not be properly optimized, so you see an error message on your lock screen or computer screen. We recommend that you create a new account and check that the Sihost.Exe Unknown Hard Error message no longer appears. If it does, it probably means that the files in your account have been corrupted.

How to Troubleshoot the `SiHost.exe Unkown Hard Error’ in Windows PC?

Install any pending updates

  1. Open the Run dialog box by pressing the Windows + R key combination.
  2. Type `ms-settings: windows update in the text box and press Enter to open the Windows Update tab in the Settings application.
  3. Once you’re in the Windows Update screen, switch to the right pane and click Check for Updates.
  4. Then follow the instructions on the screen to install pending updates until you’ve installed all the important updates.
  5. After updating the Windows 10 version, perform a final reboot and check to see if the bug has been fixed.

Using system restore

How do I fix Windows application error 0xc0000906?

By default, System Restore is set up to create and save new restore snapshots when important events occur on your system. If you have not changed this behavior by default, you should be able to select one of several restore snapshots to try to fix “SiHost.exe Unkown Hard Error”.

If you use a previously saved system restore point, you can restore your computer to an earlier time when the problem did not occur.

After using the restore snapshot to restore your computer to working order, repeat the action that caused the error and see if the problem is fixed.

Execute SFC and DISM scans

Since this problem is often related to corrupted system files, the next thing to do (if the first method didn’t help) is to run some built-in utilities that can fix the most common causes of widespread corruption of system files.

Although these two built-in utilities have some similarities, we recommend running both types of analysis in quick succession to maximize the chances of fixing the problem without having to reinstall or rebuild your installation.

  1. To do this, we should start with the SFC scan. This scan uses a locally stored archive to replace corrupt Windows files with healthy equivalents – no Internet connection is required.
  2. After completing the SFC scan, restart your computer and start the DISM scan immediately after restarting your computer.
  3. After the DISM scan is complete, reboot the computer one last time and check to see if the problem is fixed the next time it starts up.

Frequently Asked Questions

Sihost.exe is the name of a Shell Infrastructure Host file. It is a system executable file that runs in the background and is one of the most important files for Windows 10. Sihost.exe performs various processes in Windows 10, including launching and calling the context menu, Action Center, etc.

  1. Perform a clean boot.
  2. Run SFC scan.
  3. Run a CHKDSK program to repair bad or damaged sectors on the hard drives.
  4. Check for the latest changes in the software.
  5. Update outdated or faulty drivers.

Type "sfc /scannow" at the command prompt, then press Enter. After hitting Enter, Windows 10 will automatically scan your system and restore the corrupted system files. This process may take some time. Once this process is complete, you will need to restart your computer.

Unknown Hard Error is usually caused by corrupted system files, registry entries, malware attacks, and some Windows updates (for some users). This error can prevent your system from working properly or even crash; your system and data are at great risk.

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