How to fix mfc100.dll errors on Windows 10, 8.1

Marian Cularea By: Marian Cularea
4 minute read
mfc100.dll error fix

Home » Fix » How to fix mfc100.dll errors on Windows 10, 8.1

The mfc100.dll error message you get on Windows 10, 8 can be caused by several reasons. This error message on Windows 10, 8 probably prevents you from logging in to the computer. So, in order to fix this problem, you will most likely need to enter “Safe Mode” on Windows 10, 8 and continue the troubleshooting process from there.

mfc100.dll error fix windows 10
As you can see in the screenshot above, the error message that appears on the screen is this: The program can’t start because mfc100.dll is missing from your computer. 

One of the possible reasons for which you can get the error message regarding the “mfc100.dll” file is that maybe your computer is infected with a virus or malware. You might have a hardware failure, your Windows 10, 8 registry might be corrupted or perhaps you deleted it by mistake.

We have several options that your can try to get your “mfc100.dll” file back and get your system to work properly. So, in order to fix this problem, follow the instructions listed below.

Mfc100.dll is missing on Windows 10, 8

  1. Download Microsoft Visual C++ Service Redistributable Package
  2. Check your Recycle Bin
  3. Scan your system for malware
  4. Use System Restore
  5. Reinstall problematic programs
  6. Repair your Registry

If Windows 10, 8 starts normally, don’t enter Safe mode and go straight to the first solution. On the other hand, if Windows 10, 8 won’t start, then try to boot our PC into “Safe Mode“ by Pressing the “Shift” button and “F8” button when you power it up.

1. Download Microsoft Visual C++ Service Redistributable Package

  1. We need to go and download Microsoft Visual C++ 2010 Service Pack 1 Redistributable Package MFC Security Update and install it .(choose the correct version to install depending on the operating system you have . Example: Windows 8 , Windows 8.1 etc.)
  2. This Program will try to replace or repair the “mfc100.dll” file in the system.

2. Check your Recycle Bin

If the problem persists, try restoring the mfc100.dll file from the Recycle Bin – in case you accidentally deleted it.

  1. If you deleted the “mfc100.dll” file by mistake then go to “Recycle Bin” on the desktop.
  2. Restore the “mfc100.dll” file you deleted.

3. Scan your system for malware

  1. Open the antivirus you have on you Windows 10, 8 operating system
  2. Scan for any virus or malware issues (it is possible that some viruses or malware might damage your DLL files). Note: Run a scan of the entire system.

— RELATED: Best Antivirus software to use in 2018 for your Windows 10 PC

4. Use System Restore

You can use the System restore option to go back to a previous version of your system. This way, any files that you might have deleted or misplaced will be restored to a previous working state.

Instructions for Windows 8.1:

  1. Move the mouse cursor to the right side of the screen.
  2. After the Charms bar opens up type in the search box “Recovery”
  3. Click (left click ) on the “Settings” bar on the right side of the screen.
  4. Click (left click) on the “Recovery” icon.
  5. From the window that pops up click (left click) on “Open System Restore”.
  6. Choose the Recommended restore you have on the screen by left clicking on it.
  7. Click (left click) on”Next” situated in the lower side of the screen.
  8. Click (left click) on ”Finish” situated in the lower side of the screen.
  9. Wait for the system restore to finish.

Instructions for Windows 10:

On Windows 10, you can either Reset your PC and keep your personal files or you can restore Windows from a system image. We recommend you to start with the Reset method first. Go to Start > type ‘recovery’ > double-click on the first result to open the Recovery settings page > select Reset and follow the on-screen instructions to complete the process.

pc recovery options windows 10

5. Reinstall problematic programs

The error with “mfc100.dll” file might occur when you install a program. This means that the install process failed and the respective programs hasn’t been properly installed on your machine. If this is the case, follow these steps:

  1. Reboot the computer.
  2. Uninstall the program.
  3. Install the program again.
  4. Reboot the computer.e.

6. Repair your Registry

You can also fix .dll issues by repairing your Registry. Fortunately, there are many tools that you can use to quickly fix your Registry. For more information, check out this list of the best Registry cleaners to you on your Windows computer.

The five tutorials posted above will probably solve your issue with the “mfc100.dll” file on Windows 8. But we also strongly recommend you to download this tool (100% safe and tested by us) to fix various PC problems, such as missing or corrupted .dlls, but also file loss and malware.


Editor’s Note: This post was originally published in August 2014 and has been since updated for freshness, and accuracy.


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