How To Fix 'Error 0x800F081F' During .NET Framework 3.5 Installation on Windows 10

Question

I'm in a bit of a pickle here. I'm trying to install the .NET Framework 3.5 on my Windows 10 computer, but this pesky 'Error 0x800F081F' keeps throwing a wrench into my plans. It's like trying to rope a calf that just won't stay put!

I've scoured the web, but I can't seem to find a clear solution to this wrangle. It's like I'm caught in a desert storm without a shelter. If any of you seasoned cowboys or cowgirls out there have faced this same trouble and managed to lasso a fix, I sure could use some sage advice.

I've heard tell that checking my network connection might be a starting point – gotta make sure I'm riding with a strong connection, just like a rider needs a sturdy horse. Some folks have mentioned trying to install the framework offline, which sounds like venturing into the wild alone, but if that's what it takes, I'm game.

Then there's talk about these Windows features. Apparently, I need to make sure that '.NET Framework 3.5 (includes .NET 2.0 and 3.0)' is all saddled up and ready to ride from the 'Turn Windows features on or off' corral.

If I'm being honest, I'm a bit new to this whole Windows rodeo, so I'm not sure how these Group Policy settings come into play. I'm not on a managed network, but I've heard they can still muddle up the water like a dust storm in the desert.

If any of you have wrangled with this ornery 'Error 0x800F081F' before and came out on top, please, share your secrets. webtrader I'm all ears, eager to learn how to put this error out to pasture and finally get that .NET Framework 3.5 up and running like a well-oiled stagecoach.

Answer 1

Hi @Travis Johns，Welcome to Microsoft Q&A,

The error code 0x800F081F is usually caused by setting errors, or the Windows Update update service is not started, please follow the steps below:

1. First, press Windows + R simultaneously to bring up the Run dialog
2. Enter gpedit.msc, click OK
3. Finally open the "Group Policy Editor" window, on the left [Computer Configuration] - [Administrative Templates] - [System] folder
4. Select "Specify settings for optional component installation and component repair" to modify the installation settings of window components

5. After double-clicking, click Enable and then click OK

6. Press and hold "window+R" at the same time to open the "Run" dialog box, and enter "services.msc" to open the service
7. Find the "Windows Update" service, then right-click "Properties", select "Automatic", and click "OK"

8. Press the "win+R" key, enter "control.exe" and press Enter, and click the [Program] menu
9. Click [Turn Windows features on or off]

10. Select ".NET Framework3.5", do not check Windows Communication Foundation HTTP activation, or Windows Communication Foundation non-HTTP activation, click "OK"

After completing the above steps, you will find that your .net framework 3.5 can be successfully installed

Best Regards,

Wenbin

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