In this article I’ll try to give some common troubleshooting tips to resolve .NET Frameworks 4.0 install issues.
Run the System Update Readiness Tool:
The System Update Readiness Tool would check System resources, such as file data, registry data, and even in-memory data, can develop inconsistencies during the lifetime of the operating system would try to resolve it.
Download the update package now – x86
Download the update package now – x64
MSI software update registration corruption issues:
Sometime the software update registration might causes issues in applying update from Windows Update. Microsoft has a Microsoft Fixit tool that would resolve such issues.
Repair Existing version of .NET Frameworks:
Windows 7 comes with .NET Frameworks 3.5. Sometime that version might have corrupted. So what we could do is to reinstall .NET through Programs and Features and run SFC /SCANNOW command scans the integrity of all protected Windows 7 system files.
- Click on Start and under search type in appwiz.cpl
- Then Click on Turn Windows Feature On or Off
- Uncheck on .NET Frameworks and click OK
- Restart you System
- Now click on Start and under search type in CMD
- Right Click on CMD and Run as administrator
- Next type in SFC /SCANNOW
- Click on Start and under search type in appwiz.cpl
- Then Click on Turn Windows Feature On or Off
- Check on .NET Frameworks and click OK
- Then Test it and see if that work
Run .NET Cleanup Tool for .NET Frameworks 4.0:
Sometimes the failed install of .NET Frameworks might have some left-over files. So by running this tool we can make sure that all left-over files will be removed.
Download: dotnetfx_cleanup_tool.zip from MSDN.
If these step fails please see if any of these links are of assistance:
Startup Repair in Windows 7
Choosing an advanced recovery method
System recovery options in Windows 7.
