Fix Common DLL Errors After Windows 11 Upgrade

After upgrading to Windows 11, you may see:

Common Errors: - VCRUNTIME140.dll is missing - MSVCP140.dll not found - api-ms-win-crt errors - Old applications won't start - Games crash on launch

Causes: - Visual C++ Redistributables need reinstallation - Incompatible applications - Corrupted upgrade process - Old drivers

Windows 11 upgrade may corrupt VC++ installations:

Step 1: Uninstall all Visual C++ Redistributables: 1. Open Settings → Apps → Installed apps 2. Search "Visual C++" 3. Uninstall each one

Step 2: Download and install all versions:

2015-2022 (Latest): - x64 - x86

2013: - x64 - x86

2012: - Download from Microsoft

2010: - Download from Microsoft

Step 3: Restart computer

Windows 11 may need updates for compatibility:

Step 1: Open Settings → Windows Update

Step 2: Check for updates

Step 3: Install all available updates

Step 4: Check "Optional updates" for: - Driver updates - .NET Framework updates

Step 5: Restart computer

Repeat until no more updates are available.

Upgrade process may have corrupted files:

Step 1: Open Terminal as Administrator

Step 2: Run DISM first: `` DISM /Online /Cleanup-Image /RestoreHealth `

Step 3: Wait for completion (may take 15-30 minutes)

Step 4: Run System File Checker: ` sfc /scannow ``

Step 5: Restart computer

For games and graphics apps:

Step 1: Download DirectX End-User Runtime

Step 2: Run the installer

Step 3: Complete installation

Step 4: Restart computer

This installs legacy DirectX 9/10/11 components needed by older games.

If an old application still won't work:

Step 1: Right-click the app's .exe file

Step 2: Select Properties → Compatibility

Step 3: Check "Run this program in compatibility mode for:"

Step 4: Select "Windows 10" or "Windows 8"

Step 5: Also try: - Run as administrator - Disable fullscreen optimizations

Step 6: Click Apply and OK

For persistent issues: Search for the app on PCGamingWiki.com for app-specific fixes.