▷ Repair sihost.exe unknown hard error in windows 10

The error that we will see today in Windows 10 will show us the following message: System Warning: sihost.exe Unkonwn Hard Error. This error is usually common in Windows 10 system at least after updating both system components and drivers. Today we will dedicate ourselves to studying the possible solutions for this error.

Index of contents

What causes the Sistem Warning: Unknown Hard error

This error usually appears when the system produces corrupt registry entries due to configuration changes. Among these configuration changes we can mention, corrupt or badly carried out updates, due to reboots, for example. Or also due to error in drivers, specifically with Realtek devices, which are undoubtedly the most installed and used by motherboards, from a while ago.

The consequences of this error are usually very varied. Although one of the most common is a drastic drop in performance in the operation of the system. This error usually occurs after starting the system. A window with a huge X will appear on its right side followed by a small window with the message sihost.exe Unknown Hard Error.

After this we will possibly experience the loss of the taskbar due to the blocking of the Windows explorer, or even the sudden freezing of the desktop leaving us to do absolutely nothing.

With that said, let's look at possible solutions and procedures below to try to fix this error. You can imagine what our last section will consist of, right?

Solution 1: Reinstall Realtek High Definition Audio Driver

One of the most frequent causes of this error is due to the driver of our Realtek sound card. It's worth putting this solution first because it's the fault of this particular driver.

• The first thing we should obviously know is if our sound card is of this type. To do this, we are going to go to the start menu and right-click on it. The next thing will be to choose from the menu in gray that appears the option " Device Manager " Now a window will appear in which they are shown all the devices of our team. We locate the line of " Sound and video controllers "

If the controller of our team is Realtek, we can do the following steps shown here.

Right click on the device that opens when displaying the tree and choose "Uninstall device"

Now the sound devices will be gone. Then click on "Action" and then "Search for hardware changes"

Again, the computer will detect the devices and reinstall the drivers.

This procedure can also be done by starting the system in safe mode.

How to start in safe mode Windows 10

Solution 2: Uninstall Windows 10 updates

This solution is dedicated to those users who are experiencing problems with computer updates. In other words, this error has appeared after installing an update on your computer.

We already have a complete tutorial explaining how to uninstall updates in Windows 10, whether we can enter Windows or not.

Solution 3: using PowerShell or command prompt

If the previous methods are not applicable, what we can do is use the three star commands to carry out an error scan in our system and the corresponding correction of them.

The first thing we must do is open the command prompt, we can choose Windows PowerShell or Command Prompt

We will choose the first option. Right click on the Windows start button to choose the option " Windows PowerShell (Administrator) ". Note that you must open this window with administrator permissions. The same also for Command Prompt.

Now we will place the following command and then press Enter

chkdsk / r / f

We hope it ends and we restart. If it has not worked, we put the following command: (also with administrator permissions)

sfc / scannow

We do the same procedure as before. If it does not work either we will put the following:

DISM / Online / Cleanup-Image / RestoreHealth

This last command may take longer, as it is the most comprehensive of all.

Solution 4: Start Windows cleanly

If through the previous procedure we have not achieved anything, it is time to identify one by one the services and startup programs that may be causing problems in our system. It is tedious work, but surely we will correctly identify which one is causing problems.

If this error has started to occur after the installation of any program, what we will have to do is disable it before anyone else, and then restart

• To do this we must open the Run tool by using the key combination " Windows + R " and write inside " msconfig " Once the system configuration window opens, we will go to the " services " tab Here we will click on " Hide all Microsoft services ”to do the first screen. Next, we will click on“ Disable all ”, to disable the remaining services

• The next thing will be to go to the " Windows Start " tab where we will click on the link in the window to access the task manager. Here we will dedicate ourselves to selecting each program that exists and to clicking on the disable button.

Now what we will have to do is restart the computer. If the error does not reappear, it is that one of these programs and services is causing the error. What we will have to do is activate each of these programs with their corresponding service and restart until we find which one is causing the problems.

It is tedious work, but surely we will find the error sooner or later.

Solution 5: The definitive one. Reinstall / Restore Windows 10

As we warned at the beginning, every error tutorial must end with the star solution. If nothing has worked, as usual, what we will have to do is choose to restore Windows 10 or reinstall it.

Do not worry because in both cases we can keep our files safe and sound if you follow our corresponding tutorials.

Check these articles to know how to avoid these errors

Have you been able to solve your error, with what method? If you have not been able to, write us in the comments and we will find some other solution.