Install Net Framework – How to Fix Your .NET Framework 4 Error

You just installed Windows 7 home premium and when it finished you got this message, "To run this application you first must install one of the following versions of the .Net Framework: v4.0.30319". You don't know if this is something you might have uninstalled or if this is something you need. Can you help me out?

Well you went to control panel and you found a program Microsoft.Net Framework 4 client profile. You repaired that thinking that might be necessary. You tried to reinstall Windows 7 and you came up with same problem.

Please browse to Microsoft Windows updates site. Download and install all updates available. .Net framework might be included.

If it is not then download and run Microsoft .NET Framework 4 web installer. Click on a "Download" button and then click it to start that download. To start an installation immediately, click "Run".

Hopefully, this will install .Net framework and clear that error message. No you don't need to reinstall Windows 7. Please reboot your computer and see if you no longer receive that message.

If you still receive that message after rebooting, then go into control panel and perform a repair on .Net framework if that option is available. If a repair does not fix your issue or that option is unavailable, then please boot your computer into Windows safe mode last known good configuration. After your BIOS splash screen and before Windows 7 tries to boot press your F8 key until an advanced boot options window opens.

Select "Last known good configuration" and see if that clears that .Net error.

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About Author Aaron J. Berg



Aaron J. Berg is the owner of Anet Computers, host of the Reality PC podcast, and blogger at AnetComputers.com. For over thirteen years, he worked for fortune 500 companies and the United States Federal government supporting computers. Now he helps you solve your most common computer problems.

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