I get an error code 0x800F0906 while installing the .netframework 3.5 update on Windows 8 pro. PLEASE HELP!!!

Question

I can not install .Net 3.5 on my windows 8 pro.

I have tried to go through:

1. Enable windows features
2. Windows Update when I try to install an application that requires 3.5
3. The DISM command with a local image: dism.exe /online /enable-feature /featurename:NetFX3 /Source:G:\sources\sxs /LimitAccess

4. The full .Net 3.5 installer package

And yes I have checked my internet connection.

When I run 1, 2 & 4 I get the following error:

The following feature couldn't be installed:

.Net Framework 3.5 (includes .NET 2.0 and 3.0)

Error code: 0x800F0906

When I run the DISM command in administrator mode I get:

F:\sources>cd sxs

F:\sources\sxs>dism.exe /online /enable-feature /featurename:NetFX3 /Source:F:\sources\sxs /LimitAccess

Deployment Image Servicing and Management toolVersion: 6.2.9200.16384

Image Version: 6.2.9200.16384

Enabling feature(s)[===========================65.8%======                    ]

Error: 0x800f081f

The source files could not be found.Use the "Source" option to specify the location of the files that are required to restore the feature. For more information on specifying a source location, see http://go.microsoft.com/fwlink/?LinkId=243077.

The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log

F:\sources\sxs>

PLEASE HELP. I need to install several applications that requires .Net 3.5. If I can not get this to work I have to go back to windows 7.

Original title: Error installing .Net 3.5 framework on windows 8: 0x800F0906

Answer 1

Got this problem, on Server 2012 R2, but still, I'm pretty sure this solution will apply to Win8 too.

I had 2 causes of problems causing this:

1- I had a language pack installed, doesn't seem right that this causes an issue, but it does, uninstall any before installing NetFX3

2- An update was newly available on Windows Update named: "Update for Microsoft .Net Framework 3.5 for x64-based Systems (KB3005628)". Released between Mid-September 2014 and October 9th 2014. Since we are using SCCM and deploying updates onyl once a month, I had to go online to get this update.

Once these two steps were done, It installed perfectly! Hope this helps.

Answer 2

You're referring to a page that gives solutions of which sirganbz specifically said that they don't work.

I have the same problem, none of the solutions work. The dumbest error of all: when trying to install the full package, Win8 still tries to download the files.

Answer 3

Hi,

Thank you posting your question in the Microsoft community.

I understand that you are trying to install the .Net Frame 3.5 however you are encountering the error 0x800F0906.

There is a Windows knowledge base article that provides methods to troubleshoot this issue. I would suggest that you visit the link and use the methods to resolve the issue.

Error codes when you try to install the .NET Framework 3.5 in Windows 8 or in Windows Server 2012

http://support.microsoft.com/kb/2734782

You may also refer this link for more information.

Installing the .NET Framework 3.5 on Windows 8

http://msdn.microsoft.com/en-us/library/hh506443.aspx

Let us know if you need any further assistance.