Can't activate Net Framework 3.5 on Windows 8.1 (1 Viewer)

[Aucherie]

I'm trying to install MP Ver. 1.8 on a Windows 8.1 PC, but when I attempt to turn on .Net Framework 3.5 I get the Windows Error Code: 0x800F0906 (Windows couldn't connect to the internet to down load necessary files.) with a link (http://support.microsoft.com/kb/2734782) to resolve the problem. The methods suggested are: 1. Check internet connection - no problem 2. Configure Group Policy setting - no joy 3. Use Windows installation media as the file source (USB drive, in my case) - can't get this to work)

Has any one else encountered this problem and come up with a fix?

 

[Sebastiii]

You need to enable it from win8 options (add feature or something)

 

[Sebastiii]

Like here :
http://wiki.team-mediaportal.com/1_.../Building_MediaPortal_from_source/1_Git_Setup

Configuration
.Net Framework 3.5
Enable the (Microsoft) .NET Framework 3.5 feature if it is not already enabled:

• Go to Control Panel -> Programs
• Click on "Turn Windows features on or off"

 

[Aucherie]

Thanks, Sebastiii, for the reply. I guess I was being too brief in the description of my problem, but, yes, I do know how to turn on net framework 3.5 in Windows 8.1. It is while doing this that I run into the problem outlined in my OP i.e. Windows says it can't connect to the internet to download the required 3.5 files and when I try to access them locally on my original installation USB thumb drive (per the link given in the OP), I am told that the files cannot be found. I have since tried downloading NFw3.5 directly, but the installer stops at the same point as trying to turn on NFw3.5 in "Turn Windows features on or off" i.e. Windows can't connect to the Windows Update to download the files. Very frustrating!

 

[Sebastiii]

No clue why it happen maybe an os thingy related.

 

[jarsve]

I have the same problem! Cant seem to download it With Windows update? Why do i need it anyways? Shouldnt MP be free from old stuf now?

 

[HomeY]

Open an elevated command prompt and paste the following command:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /ALL /NoRestart

 

[Aucherie]

Open an elevated command prompt and paste the following command:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /ALL /NoRestart

Thanks, HomeY, for the suggestion. Unfortunately, it has pretty much the same result i.e. Windows requesting a source file that it will not download from Windows Update or locate from the original installation media. It appears from my internet research that this is is an intractable Windows 8 problem whose only solution is completely re-installing the OS (possibly!). As much as I want MP on my 65" plasma TV, I do not want it enough to go through that procedure again on the off chance that I will be able to install NFW3.5 which I require for MP only. As jarsve has said in another post, perhaps it is time for the MP team to adapt MP to NFW4.5, perhaps in the upcoming MP2.0.

 

[HomeY]

or locate from the original installation media.

If you want to install if from a local source you need to change the line to something like:

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs

Replace D: with your DVD drive/USB thumb drive or virtual ISO drive.
I'm running Win 8.1 on 2 systems, and have .NET 3.5 enabled without issues.

Or try:
http://www.microsoft.com/en-us/download/confirmation.aspx?id=25150

 

[jarsve]

I got it to work yestarday. It was not this CMD or install at all. Suddenly Windows Update thought i needed .net3.5 and installed it. I don't know how and i don't care now. it just Works.