1. Press Windows Key + W Key.
2. Type “ CMD ” without the quotes and right click on Command Prompt.
3. Select Run as Administrator.
4. Type” sfc.exe /scannow ” without the quotes and hit on Enter Key.
The “Unknown Fatal Error” popup is annoying for a person because it often looks like you are running a video game or it could be some other intensive process on any computer and you may find that most of them involve manipulations like ” explorer.exe”, sihost.exe or ctfmon.exe.
Based on your concern, it seems that our own unknown fatal error appearing on your screen is affecting the performance of your computer. However, this can happen if some of your computer’s startup items have been compromised. To help us narrow down the real problem, please provide us with upcoming information so we can offer the best possible solution.
Are you getting almost any error message or message? Scan your Windows human body with Defender (recommended) or antivirus software. Check if this solves your problem, if so, then some software is conflicting with the operating system. In the Advanced Options window, under Indexing Options, see the Troubleshooting section.
How do I fix Sihost exe system warning unknown hard error?
To fix the sihost.exe error, your company might try removing newly installed features. If you don’t want to delete them one by one, performing a system restore is definitely a good choice. If you do this safely, your Windows will return to a state where you didn’t qualify the error.
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 try and fix it:
- Run the get (Admin) command line.
- At the command line, enter the special command chkdsk /f and /r view Enter.
- Wait until the system analysis is completed . in progress. In the end, you will almost certainly see what problems can be solved.
What does unknown hard error explorer.exe mean?
The most common fatal errors are the mysterious fatal error sihost.exe and the CTF loader. It is said that if you surely cannot open any file when you start the application and every desktop is not available, then you will also face the explorer.exe confidential fatal error.
What is Explorer EXE unknown hard error?
The unknown fatal error can be caused by Explorer by.exe, sihost.exe, ctfmon.exe, also known as other .exe files. Once you decide that you are the culprit of the component, you can uninstall or update this application for a while. An unknown fatal error can also be caused by corrupted system or music registry entries.
How do I fix explorer exe unknown hard error?
DDE server window: explorer.exe – System alert: unknown fatal error… So you can run the CHKDSK check and notify command. question:
What are the differences between unknown unknown risks and known unknown risk?
Differences Between Known Threats and Unknown Risks To distinguish between known and unknown risks, project managers must prioritize project objectives. Known risks need to be identified, analyzed and planned, while unknown risks are difficult to anticipate and describe.

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.