The msvcp100.dll error appears when Windows cannot locate this Microsoft Visual C++ 2010 component. You encounter this notification during program launches, software installations, or system startup. Applications built with Visual Studio 2010 require this library for proper execution. The error prevents games, Adobe products, and development tools from running. Windows displays messages stating the program cannot start because msvcp100.dll is missing from your computer. Several proven methods resolve this issue across Windows 11, 10, 8, and 7 systems without requiring technical expertise.
Method 1: Reinstall Microsoft Visual C++ 2010 Redistributable
Missing Visual C++ components cause most msvcp100.dll errors. Reinstalling the package restores the library automatically.
Press the Windows key and type Control Panel. Select Programs and Features from the menu. Locate all Microsoft Visual C++ Redistributable entries in the list.
Right-click each Visual C++ 2010 version and select Uninstall. Wait for the removal process to complete before proceeding.
Download the Visual C++ 2010 Redistributable Package from Microsoft’s official website. Choose x86 for 32-bit systems or x64 for 64-bit Windows. Install both versions on 64-bit systems to ensure compatibility with all applications.
Run the downloaded installer with administrator privileges. Follow the on-screen prompts and restart your computer after installation completes. Similar approaches work when fixing Msvcr100.dll errors on Windows systems.
Method 2: Copy msvcp100.dll from Another Computer
Transferring the library from a working machine provides an alternative solution. Find another computer running the same Windows version and architecture.
Press Windows + E to open File Explorer on the working computer. Navigate to C:\Windows\System32 and locate msvcp100.dll in the directory.
Copy the file to a USB drive or external storage device. Transfer it to your affected computer and paste it into the same System32 folder.
For 64-bit Windows, you may need to place a copy in C:\Windows\SysWOW64 as well. Restart your system after copying the file to register it properly.
Method 3: Run System File Checker
Windows includes built-in repair utilities that restore corrupted system files including msvcp100.dll components. These tools work automatically without external downloads.
Right-click the Start button and select Command Prompt (Admin) or PowerShell (Admin). Type sfc /scannow and press Enter to begin the scan.
Wait 15-20 minutes for the scan to complete. The utility reports whether it found and repaired corrupted files. Restart your computer after the process finishes.
You can also run DISM /Online /Cleanup-Image /RestoreHealth for deeper repairs. This command fixes component store corruption that prevents SFC from working properly. Understanding how to fix DLL files on Windows helps with similar system library issues.
Method 4: Scan for Malware
Malicious software corrupts or deletes essential library files. Run a complete system scan to eliminate this possibility.
Open Windows Security from the Start menu. Navigate to Virus & threat protection and select Scan options.
Choose Full scan to examine all system directories thoroughly. Windows Defender scans take 30-60 minutes depending on your drive size.
Consider using additional antivirus software for comprehensive protection. Third-party security tools detect threats that Windows Defender might miss. Quarantine or remove any detected infections immediately.
Method 5: Reinstall the Affected Program
Applications bundle their own copies of required DLL files during installation. A clean reinstall restores missing components automatically.
Navigate to Settings and select Apps. Locate the problematic application in the list and click Uninstall.
Download a fresh installer from the official website or trusted source. Run the setup file with administrator rights and complete the installation process.
Steam users can verify game integrity instead of reinstalling. Right-click the game, select Properties, navigate to Local Files, and choose Verify integrity of game files.
Method 6: Use System Restore
System Restore reverts Windows to a previous state when msvcp100.dll functioned correctly. This method undoes recent changes without affecting personal files.
Type System Restore in the Windows search bar. Select Create a restore point from the results.
Click System Restore and choose a restore point dated before the errors appeared. Follow the wizard prompts to complete the restoration process.
Your computer restarts during restoration. Personal documents remain intact while system files return to their previous state. Similar troubleshooting methods apply when addressing ntdll.dll errors on Windows.
Update Device Drivers
Outdated hardware drivers occasionally contribute to DLL complications. Graphics and audio drivers particularly affect library functionality.
Press Windows + X and select Device Manager. Expand Display adapters and right-click your graphics card.
Choose Update driver and select Search automatically for drivers. Windows locates and installs compatible versions from Microsoft’s servers.
Visit your hardware manufacturer’s website for the latest drivers. NVIDIA, AMD, and Intel provide automatic detection tools that identify your hardware and recommend appropriate updates. Restart your system after driver installation completes.
Prevention Tips
Keeping Windows updated prevents future msvcp100.dll complications. Navigate to Settings and select Windows Update to install available patches.
Maintain current antivirus definitions to detect threats before they corrupt system files. Enable real-time protection in Windows Security for continuous monitoring.
Avoid downloading DLL files from third-party websites. These sources distribute malware or incompatible versions that create additional problems. Always use official Microsoft channels for runtime components.
Create regular system restore points before installing new software. This provides recovery options if installations corrupt system libraries. Understanding vcruntime140.dll fixes helps address similar runtime library issues.
FAQs
What causes the msvcp100.dll error on Windows?
Missing or corrupted Visual C++ 2010 Redistributable packages cause this error. Malware infections, accidental deletion during cleanup, or incomplete software installations also trigger the notification across Windows systems.
Can I download msvcp100.dll directly from websites?
Never download DLL files from third-party websites. These sources distribute malware or outdated versions. Install the official Visual C++ 2010 Redistributable from Microsoft instead for safe resolution.
Do I need both x86 and x64 versions installed?
Yes, if you use 64-bit Windows. Many 32-bit applications run on 64-bit systems and require x86 runtime components. Installing both versions ensures complete compatibility with all software.
Will reinstalling Windows fix the msvcp100.dll error?
Windows reinstallation is unnecessary for msvcp100.dll errors. Installing Visual C++ 2010 Redistributable, running System File Checker, or using System Restore resolves the issue without reinstalling your operating system.
Why does the error appear after Windows updates?
Windows updates occasionally modify or remove runtime libraries. Reinstall Visual C++ 2010 Redistributable after major updates. System Restore can revert changes if the update caused the error.
