How to fix Sechost.dll is missing or not found error in Windows?

Issue: Yesterday I tried to open Discord on my Windows laptop, and I received an error “The code execution cannot proceed because C:\Windows\SYSTEM32\sechost.dll was not found.” I decided to wait and see what would happen, and today nothing changed. I can't open several other apps. Any ideas on how to deal with this?

Solved Answer

Windows is a complex operating system that comprises thousands of files, including dynamic-link library files, also known as DLLs. These files contain code and resources that are used by multiple programs and applications. DLLs are essential for the proper functioning of Windows, and when they are missing or not found, it can cause errors that prevent users from opening or running certain apps.

One common error that some Windows users may encounter is the “Sechost.dll is missing or not found” error. This error message can appear when attempting to open certain applications, such as Discord, Steam, Teams, and others. The error message usually indicates that the Sechost.dll file is either missing, corrupt or not properly registered in the system.

The Sechost.dll file is a critical system file that is used to manage security and authentication processes in Windows. It is responsible for managing processes related to security protocols, such as Windows Firewall, authentication, and authorization. When this file is missing or not found, it can cause errors that prevent users from running certain applications.

Fortunately, there are several ways to resolve the “Sechost.dll is missing or not found” error. One of the easiest and most effective solutions is to restore the missing or corrupted Sechost.dll file using the System File Checker tool (SFC). This tool scans the system for missing or corrupted system files and replaces them with the correct versions.

How to fix Sechost.dll is missing or not found error in Windows?

Another solution is reinstalling the affected applications, which can sometimes resolve any issues related to missing or corrupted DLL files. Additionally, performing a clean install of Windows can help resolve the error, as this will replace all system files, including DLLs, with fresh copies.

You will find several solutions to fix the “Sechost.dll is missing or not found” error below, although we do recommend trying automatic repair with FortectMac Washing Machine X9, which can quickly and easily replace corrupted system files and resolve errors.

Fix 1. Re-register the DLL file

  • Type cmd in Windows search.
  • Right-click on the Command Prompt search result and select Run as administrator.
  • When UAC (User Account Control) window shows up, select Yes.
  • In the new window, copy and paste the following command:
    regsvr32 sechost.dll
  • Press Enter and let it execute.
  • Close down everything and restart your system.

Re-register DLL file

Fix 2. Update Windows

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Apply all the available Windows updates to make sure that the system is patched with all bug fixes from Microsoft.

  • Type Updates in Windows search and hit Enter.
  • Here, click Check for updates – Windows will download all the necessary files.
  • If optional updates are available, install them as well.
  • Finally, reboot your device.

Update Windows

Fix 3. Check for corrupted files

  • Open Command Prompt as administrator.
  • Next, type in the following command and press Enter:
    sfc /scannow
  • Once done, run the following commands as well:
    dism /online /cleanup-image /scanhealth
    dism /online /cleanup-image /checkhealth
    dism /online /cleanup-image /restorehealth
  • Restart your device.

SFC and DISM

Fix 4. Reinstall the app causing the problem

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

In some cases, DLL errors can be fixed by reinstalling the application that is causing the error.

  • Right-click on Start and pick Apps and Features.
  • Scroll down to locate the app in question, for example, Discord.
  • Click Uninstall and confirm with Uninstall.
  • Follow on-screen instructions to remove the app.
  • Then, download the installer from the official website and install the program once again.

Reinstall app

Fix 5. Reset Windows

  • Right-click on Start and pick Settings.
  • Go to Update & Security and pick Recovery.
  • Find Reset this PC section and click Get Started.
  • Select Keep my files > Cloud download.
  • Proceed with the on-screen instructions (your computer may restart several times).

Reset Windows

Fix 6. Reinstall Windows

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect Mac Washing Machine X9.

Before proceeding, make sure you back up your files, disconnect all unnecessary devices, and uninstall a third-party anti-malware app.

  • Download Windows 10 installation media (Windows 11 version) from the official Microsoft website.
  • Double-click the installer to launch it.
  • Agree to Terms and select Next.
  • Select Create installation media (USB flash drive, DVD or ISO file) for another PC and click Next.
  • Pick a USB flash drive (make sure you have USB connected to your PC).
  • Mark the Use Recommended options for this PC checkbox and click Next.
  • Connect the USB to the PC that you are having trouble with.
  • Boot into BIOS (typically by pressing F2, F8, F12, Del, or another key several times) and go to Boot menu.
  • Here, select the Boot priority option and set it to USB.
  • Restart the computer.
  • When the system boots, you should see the Install now option – click it.
  • Pick all the preferences and click Next.
  • Skip Windows activation for now – select I don't have a product key.
  • Select the correct operating system version.
  • Pick Custom: Install Windows only option.
  • Select the partition and then begin the installation process.

Reinstall Windows

Repair your Errors automatically

ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

Offer
do it now!
Download Fix
  Happiness
Guarantee
do it now!
Download Fix
  Happiness
Guarantee
Compatible with Microsoft Windows Compatible with OS X
Still having problems?
If you failed to fix your error using FortectMac Washing Machine X9, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Fortect - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Mac Washing Machine X9 - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Fortect malware removal tool.To repair damaged system, you have to purchase the licensed version of Mac Washing Machine X9 malware removal tool.

Prevent websites, ISP, and other parties from tracking you

To stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous by encrypting all information, prevent trackers, ads, as well as malicious content. Most importantly, you will stop the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.

 

Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost. To recover lost files, you can use Data Recovery Pro – it searches through copies of files that are still available on your hard drive and retrieves them quickly.

 

About the author
Ugnius Kiguolis
Ugnius Kiguolis - The problem solver

Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.

Contact Ugnius Kiguolis
About the company Esolutions

What you can add more about the problem: "How to fix Sechost.dll is missing or not found error in Windows?"