Windows 10: NET Framework 3.5 problems installing

Hello,

I know this has been asked many times but I have been unsuccessful trying all that has been suggested before. When I attempt to install it through turn Windows features on or off it begins to download but then I get an error code 0x80070002.
I have tried running DISM with DISM /Online /Enable-Feature /FeatureName:NetFx3 /Source:f:\sources\sxs /All /LimitAccess only to get error 0x800f081f.
I have run sfc /scannow and Dism /Online /Cleanup-Image /RestoreHealth, both of which say nothing is wrong.
I am using the image I made on a flash drive, and going into sources\sxs the 70,635 KB cabinet file is there.

Is there anything else that I could be doing to resolve this and install it?

:)

 

unexpected error occurred while troubleshooting

Upgraded to 1607 but unable to get .Net framework 3.5 windows update as it is required , when tried to install .Net 3.5 framework.

Why windows update is required for installing .Net framework 3.5?

 

.NET Framework not installing on Surface pro 4

Trying to install Starry Night 7. An essential application that it uses, requires .NET framework 3.5.1.

So far I've tried:

1. downloading .NET 3.5 and the .NET 3.5 service pack 1.

- Will not install

2. Downloaded the windows update troubleshooter.

-says it fixed the problems; try to install 3.5; doesn't work.

3. Downloaded .NET framework repair tool

-can't fix the problem

4. went to programs and features to enable .NET framework 3.5

- doesn't work; tries to install the updates, error code 0x80070002

 

Are you certain that the drive letter is correct? The one assigned when you mounted the image/flash?

 

Try these one at a time, then see if .NET installs. If one helps, you don't have to do the rest.

• Run the built-in Windows Update Troubleshooter in Control panel
  Press advanced, run as administrator
  
  
• Run the Windows Update diagnostic tool
  http://download.microsoft.com/downlo...nostic.diagcab
  
  
• Reset Windows Update
  
  
• Manual repair Windows Update and compnonent services
  • Stop the Windows Update service
    Open Services
    sort by the names column (reverse order - might take two clicks on the column heading)
    Right click Windows Update service, select Stop
    
  • Clean up the temp Windows Update files in the SoftwareDistribution folder
    Navigate to C:\Windows\SoftwareDistribution\DataStore
    Delete all files and folders in the DataStore folder
    Note: Windows Update history also gets reset. To see Windows Updates, look in Installed Updates.
    
    Navigate to C:\Windows\SoftwareDistribution\Download
    Delete all files in the Download folder
    
  • Start the Windows Update service
    Open Services
    sort by the names column (reverse order - might take two clicks on the column heading)
    Right click Windows Update service, select Start
    
  • DISM - Repair Windows 10 Image
    Option One: To Run "DISM /Cleanup-Image" Tool in Command Prompt
    Step 6. To Use DISM /RestoreHealth /Source:wim Command
    OR
    Step 7. To Use DISM /RestoreHealth /Source:esd Command

 

Compare:
What you used:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /Source:f:\sources\sxs /All /LimitAccess

What I used:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:I:\sources\sxs


Where the /Source:I:\ is the mounted USB drive, with the Windows 10 ISO I made using Media Creation tool.



Note The above that I used was a single version(Home) ISO.

 

Yes, the drive letter is correct.

 

Thank you for your help. Unfortunately I was unable to get any of these to work.

 

Thanks, unfortunately this did not help either.

 

try this

REBOOT first

and do not use control panel - add features - as it always downloads from windows uodate

Dism /online /Disable-Feature /FeatureName:NetFx3 /Remove

then try to enable it again (change drive letter E to match the mounted ISO drive letter

Dism /online /enable-feature /featurename:NetFx3 /Source:E:\sources\sxs /all /LimitAccess

 

After trying this I get "Error: 2 System cannot find the file specified."

 

@jdk... the ISO from Media Creation Tool is ESD format. The ISO from Tech Bench is WIM format. I've never had much luck using the ESD format to do any DISM work, but never an issue with WIM. I used it to add .net 3.5 on Insider 14342 & 14352. Same DISM command listed above. Might want to try, can't hurt.

 

but the net3 cab file is in the sources\sxs folder
which is separate from the wim file..

 

Agreed, it is, but the sources\sxs folder is in the WIM BASED ISO. When the ISO from Tech Bench (WIM format) is mounted, this works perfectly:

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

Where X is the mounted drive letter.

The structure of the ISO is:

 

I'll need more information than I was unable to get any of these to work

Screenshots of what you did and any EXACT errors will get to a resolution much faster.

Often a trained eye can see something
- but no one can see anything if you don't provide pertinent feedback *Wink