Can't enable or install .NET Framework 3.5 in Windows 8.1 PRO 64-bit

Anonymous
2014-02-08T14:22:54+00:00

I continually receive the message in a dialogue that

"Windows couldn't complete the requested changes.

The system cannot find the file specified.

Error code: 0x80070002"

I have not been able to find my way around it.  Running on a 4770K system with fresh install, only user, and with Admin privileges, and usually running Command and many other programs as Administrator.

Can't turn 3.5 on through Control Panel "Turn Windows features on or off", although .NET Framework 4.5 Advanced Services IS enabled.

No success either, using installers provided with programs that require that version of .NET.  As they do require it, I am hoping to get this resolved.

No success with DISM method of scanhealth & restorehealth, although these run OK.

No success with DISM method to install from distribuion CD, mounted ISO, or folder Sources\sxs folder copied to hard drive (including using /LimitAccess switch).

I haven't been able to figure out from looking at the DISM and CBS logs what might be missing.

No success changing server or path in Administrative Templates, etc. regarding Windows Update, for installing components.

No success from .NET full download or stub from Microsoft website.

Microsoft's Windows Update fix-it tool doesn't come up with a solution, either, or point to the culprit with any useful detail.

I've tried to be reasonably methodical in working this out, but I still don't seem to be getting anywhere.

ANY SUGGESTIONS, PLEASE?

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Anonymous
2017-04-28T11:28:29+00:00

Hi everyone,

I solved the problem .Just copy  the single  file from sxs folder of windows 10 dvd or iso to your local drive.

Extract this file using winrar.

Now run DISM command wih administrator privilege  with extracted folder as a source path

Ex.

dism / online /Enable-Feature /featurename:NetFx3 /All /Source:D:Sources\sxs

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  1. Anonymous
    2017-07-03T13:55:33+00:00

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  2. Anonymous
    2016-02-09T13:33:08+00:00

    When trying to install .NET Framework 3.5 on Windows 8.1 via either “Programs and Features” – “Turn Windows features on or off” or DISM (see below) you may receive the below error messages.

    0x800F0906 then 0x800f081f

    Most information on the Internet will advise you that this is because “The source files could not be downloaded.” While this may be the case in some instances there is a strong chance that you are in fact receiving this error message because one or more of the following windows update are installed on the machine - 2966826, 2966827 or 2966828.

    To check if any of the above 3 updates are installed go to “Programs and Features”, select “View installed updates” from the upper left options.  You will then be presented with the full list of installed updates.  To search for the about 3 updates go to the search text field at the upper right corner of the “Programs and Features” windows and search for “kb296682” (without quotes) this will list all updates starting with “kb296682” look to see if any or all of the above 3 updates are installed.

    You can try to uninstall these update in the following manner – on the Modern UI type “cmd” (without quotes), right click on the cmd icon and select “run as administrator.  In the command prompt window that is presented to you run one or all of the following 3 lines

    (YOU ARE NOT RECOMMENDED TO DO THIS – You are recommended to install the later update 3005628 which should fix the issue. I am giving this information for completeness)

    wusa /uninstall /kb:2966826 /quiet /norestart wusa /uninstall /kb:2966827 /quiet /norestart  wusa /uninstall /kb:2966828 /quiet /norestart

    You may find that you are unable to uninstall these updates as they are prerequisites for other subsequent updates.

    Microsoft have release a subsequent update 3005628 which resolves the issue (YOU ARE RECOMMENDED TO INSTALL THIS UPDATE TO RESOLVE YOUR ISSUE)

    https://support.microsoft.com/en-us/kb/3005628

    https://support.microsoft.com/en-us/kb/3005628/en-us

    Once you have installed update 3005628 either go to “Programs and Features” – “Turn Windows features on or off” and select the .NET 3.5 feature then download and install it using the wizard presented.

    Alternatively you can use the Windows installation media as the file source when you enable the .NET Framework 3.5 feature. To do this, follow these steps:

    1.      Insert the Windows installation media.

    2.      At an elevated command prompt, run the following command:

    Dism /online /enable-feature /featurename:NetFx3 /All /Source:<drive>:\sources\sxs /LimitAccess

    Note In this command, <drive> is a placeholder for the drive letter for the DVD drive or for the Windows 8 installation media. For example, you run the following command:

    Dism /online /enable-feature /featurename:NetFx3 /All /Source:D:\sources\sxs /LimitAccess

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  3. Anonymous
    2015-10-20T12:16:55+00:00

    Hi,

    Unfortunately I didn't find those updates -I neither found them in update history nor from control panel - 

    and I couldn't install that update mentioned

    can anyone help.

    thanks

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  4. Anonymous
    2015-10-03T15:13:31+00:00

    I can't find the update and have also tried everything.

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