Unknown Hard Error generally occurs due to corrupt system files, registry entries, malware attacks, and certain Windows updates (for some users). This error may lead the system to malfunction or even crashing; your system and data are at great risk.
Press Windows + R and type regedit.exe
Navigate to this location: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
In the left pane of this registry location, take the ownership of Windows key.
Now highlight the Windows key in the left pane and in the right pane look for the registry string (REG_SZ) named Load.
The Value data of this registry is the root cause of this issue.
Corrupt or missing explorer.exe, sihost.exe, or ctfmon.exe files
Problematic Windows updates
Hard Drive issues
Problem with hardware
Corrupted system files or registry entries
Malware or virus infection
Unknown Hard Error generally occurs due to corrupt system files, registry entries, malware attacks, and certain Windows updates (for some users). This error may lead the system to malfunction or even crashing; your system and data are at great risk.
Among all cases related to a hardware error, the most common are the unknown persistent error sihost.exe and the bootloader ctf error. It also says that when you can’t open a file or display an application and get a “Desktop not available” error, an unknown complex Explorer-Error.exe also appears in front of someone.
If you encounter this error, you can turn File Explorer back on to see how it helps you. Just start the task manager and find the explorer.exe file. Then right-click this application to select “Restart”. Solution 2 – The current explorer.exe application error changing virtual memory size can be resolved by changing the network storage size on your Windows PC.
How to fix “Unknown Error” in Windows 10 When your hard drive is damaged, it can cause an unknown hardware error and other blue screens of death errors. Use the CHKDSK command to get rid of it. Press Error: Windows Link + R to open the run window. Type cmd at the command prompt, then click OK. Type CHKDSK H: /F /R and press Enter.
Microsoft is a fantastic Windows operating system. Explorer.exe launches the main Windows Program Manager or Windows Explorer, your own graphical shell manager for this Windows operating system. It is an essential functional component for the proper functioning of Windows. It is recommended not to remove them.
Apparently, the operation of Windowzupdate is related to an unknown Windows error. To summarize the problem for you: it tried to connect to the system, but failed again. He saw an unknown fatal error Ctfmon.exe and Sihost.exe.
What are the differences between unknown unknown risks and known unknown risk?
Differences Between Known and Unknown Risks To distinguish between specific known and unknown risks, home managers are encouraged to prioritize project objectives. Known risks can be identified, analyzed and planned, while unknown risks cannot be foreseen and described directly.
How do I fix explorer.exe unknown hard error?
DDE Server Window: System explorer.exe – Warning: Unknown fatal error…. So, you can run the CHKDSK command to check and fix this issue:
- Start a command prompt (administrator).
- At the command prompt, type: chkdsk have /f /r and press Enter.
- Wait for the system scan to complete. full. At the end you will see what has been fixed.
What does unknown hard error explorer.exe mean?
Among all cases of Sihost hardware error, the unknown .exe hardware error and thus the pop CTF loader are the most improved. It is said that if you can’t make some file available or you can’t run some software and it tells you that the desktop is not available, you also get an unknown explorer.exe fatal error in front of you.
What is Explorer EXE unknown hard error?
The “Unknown A Effort” error can be caused by explorer.exe, sihost.exe, ctfmon.exe or other .exe files. Once you find the problem behind the culprits, you can temporarily remove or update this registry. An unknown fatal error can be caused by simultaneously corrupted written documents, the registry, or system records.
How do I fix explorer exe unknown hard error?
DDE Server Window: explorer.exe – System Warning: Unknown fatal error…. So, you can run the CHKDSK command to fix the most important issue:
What are the differences between unknown unknown risks and known unknown risk?
Distinguishing between “well-known” and “unknown risk” for differentiation With the inclusion of “known” and “unknown risk”, project managers are now encouraged to distinguish between project objectives. Known risks will be fully identified, analyzed and planned, while unknown risks cannot be predicted and described in advance.
How do I fix explorer.exe unknown hard error?
DDE server window: explorer.exe – Unknown system flag: hardware error… So you can run the CHKDSK command to check and solve any problems:
- Start a command prompt (administrator).
- At the command prompt, type this command chkdsk /r /f and press Enter. While
- is waiting for completion in our own parsing system. At the end you will see what difficulties have been fixed.
What does unknown hard error explorer.exe mean?
All hardware errors, unknown hardware errors sihost.exe and CTF loader are the most common. It is said that if you cannot open a file, also known as launching an application, and you receive a notification that this desktop is not available, the error is considered a fatal error. The exe will also show the case in front of you.
What is Explorer EXE unknown hard error?
The unknown fatal error can be caused by explorer.exe, sihost.exe, ctfmon.exe and others. Once you find the culprit of the problem, most people can temporarily uninstall this application, also known as the update tool. An unknown fatal error can also be caused by corrupted system files or computer system registry entries.
How do I fix explorer exe unknown hard error?
DDE Server Window: system explorer.exe – Warning: Unknown hardware error… Here’s how you can run the CHKDSK guide to check and fix the exact issue:

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.