Windows 7 cannot install .NET Framework

I am trying to install .NET 4 framework and get this message.



Is this a self installer?

Did you get it from the Microsoft site or some other site?

Check this out

https://social.msdn.microsoft.com/Forums/vstudio/en-US/147e0599-0c47-4a96-88a0-7f87861c0052/net-framework-4-installation-failed-with-error-code-0x80070643?forum=netfxsetup



Is this a self installer?

Did you get it from the Microsoft site or some other site?

Check this out

https://social.msdn.microsoft.com/Forums/vstudio/en-US/147e0599-0c47-4a96-88a0-7f87861c0052/net-framework-4-installation-failed-with-error-code-0x80070643?forum=netfxsetup



I tried both the 41MB full installed and the 896KB installer. Both from MS.



What did the log file show - just below your red box on the picture you posted.



Lots of, in my opinion, useless info.

Should I post it?



Have you tried running a Repair of .NET Framework?
http://support.microsoft.com/kb/2698555
http://www.microsoft.com/en-us/download/details.aspx?id=30135

You can also try the .NET Framework Setup Verification Tool:http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx

Download:http://blogs.msdn.com/cfs-file.ashx/__key/CommunityServer-Components-PostAttachments/00-08-99-90-04/netfx_5F00_setupverifier_5F00_new.zip

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