One of the most common errors in Windows across its various versions (Windows 10, 8, 7, etc.) is related to the MFC100.dll file. The error in question appears as a message when trying to run certain programs. “The program can’t start because MFC100.dll is missing,” “MFC100.dll is missing from your computer,” “MFC100.dll is missing,” etc. Fortunately, this error has an easy solution. This time, we’ll show you how to proceed step by step without resorting to third-party programs.
Solution to the error MFC100.dll is missing from your computer in Windows 10, 8, and 7
The first step in troubleshooting runtime errors is to install the Visual Studio C++ library. This is a set of libraries, including the MFC100.dll file, that Windows uses to run certain programs.
Before proceeding with downloading the library, we’ll need to know our computer’s architecture. Simply right-click the Windows icon in the Start menu and click System . Windows will then open a window with the computer’s technical information. The processor architecture will be displayed under System Type, which can be 32 or 64-bit.
- Download Visual C++ for Windows
Based on this information, we will proceed to download the version compatible with our computer: x86 for 32-bit computers and x64 for 64-bit computers. Once downloaded, the installation process is similar to that of other programs.
Download MFC100.dll to install it manually
If the above method doesn’t work, the next step is to manually download the file and install it in the appropriate system directory. As with the Microsoft library, you’ll need to download the version that matches your computer’s architecture .
- Download MFC100.dll 32-bit
- Download MFC100.dll 64-bit
Once downloaded, navigate to the System32 folder in the C:/Windows local disk . Now, simply paste the downloaded file into the root of the folder. On 32-bit computers, paste the file again into the SysWOW64 folder in the same path.
To ensure that the program causing the error runs correctly, the final step is to paste the library into the program’s execution directory. Simply right-click the program icon on the Desktop and select Open file location . Paste the MFC100.dll file into the folder that opens.
And if the above doesn’t work…
If none of the above works correctly, we’ll need to use the Windows command prompt, which we can access by typing “CMD” in the Start menu search bar. Before running the program, we’ll right-click on it to open it with administrative privileges .
Once inside, we will write the following command:
sfc /scannow
Windows will now run a diagnostic tool that will scan for and repair all files and errors found on the system . The process may take a few minutes, though.
