If Windows shows an "msvcr100.dll is missing" or "msvcr100.dll was not found" error when opening a program, the issue is usually related to a missing or damaged Microsoft Visual C++ 2010 runtime, corrupted system files, application problems, or compatibility conflicts. Because msvcr100.dll is required by many older Windows programs, downloading random copies from third-party DLL sites is not recommended. This guide explains several safer ways to fix msvcr100.dll errors.
What Is msvcr100.dll?
msvcr100.dll is a part of the Microsoft Visual C++ 2010 Redistributable package. It's a Dynamic Link Library (DLL) file required to run many Windows applications.
If this file is corrupted, missing, or deleted, Windows will be unable to load programs that depend on it, resulting in error messages.
Common Error Messages
You may see messages like:
"The program can't start because msvcr100.dll is missing from your computer"
"msvcr100.dll is missing"
"The code execution cannot proceed because msvcr100.dll was not found"
What Causes msvcr100.dll to Go Missing?
The DLL file was accidentally deleted while uninstalling or cleaning software.
The program installer didn't include or install the necessary Visual C++ runtime.
System files were damaged or infected by malware.
Compatibility issues between 32-bit and 64-bit components.
Fix msvcr100.dll Errors
Method 1: Install Microsoft Visual C++ 2010 Redistributable
This is the most reliable and official fix:
Visit the official Microsoft website.
Download the Microsoft Visual C++ 2010 Redistributable Package:
For 32-bit systems: vcredist_x86.exe
For 64-bit systems: install both vcredist_x86.exe and vcredist_x64.exe
Run the installers and reboot your computer, then try launching the application again.
Method 2: Run System File Checker (SFC)
Open the Start menu, type cmd, right-click Command Prompt, and select "Run as administrator".
Enter the command: sfc /scannow
Windows will scan and repair corrupted or missing system files.
Reboot your system after completion.
Method 3: Use DISM to Repair System Image
Open Command Prompt as administrator.
Enter the following commands one by one:
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Wait for the process to finish, then reboot your PC.
Method 4: Reinstall the Faulty Application
Sometimes, the application itself is corrupted. Reinstalling can automatically recover required dependencies:
Go to "Control Panel" > "Programs and Features".
Find and uninstall the application showing the error.
Download the latest version from the official site and reinstall it.
Check if the error persists.
Method 5: Use Driver Talent X
Driver Talent X not only manages drivers but also offers a built-in DLL repair feature. It saves you the trouble of searching for DLL files manually and helps avoid operational errors.
Download and install the latest version of Driver Talent X.
Launch the program and click "Try Now" to begin a full system scan.
Select "Full Checkup" and find "Core DLL Files Abnormal" section.
Locate the missing msvcr100.dll file and click "Pending Fix" to repair it.
Restart your PC to make sure the file is properly loaded and activated.
Method 6: Update Windows
Go to Start > Settings > Update & Security.
Under "Windows Update", click "Check for updates".
If updates are available, click "Download and install".
Restart your PC to apply the updates.
How to Prevent msvcr100.dll Errors in the Future
Ensure required Visual C++ runtime libraries are installed before using new software.
Avoid deleting system or DLL files manually.
Use antivirus software to regularly scan your system.
Do not install software from unknown sources.
"msvcr100.dll is missing" is a common but fixable Windows error. In most cases, reinstalling the Visual C++ 2010 Redistributable or running system repair tools will resolve the issue quickly.
Avoid downloading DLL files from third-party websites, as they may cause further damage or security risks.
