.NET Framework Installation Error 0x800F081F


This behaviour can be caused by different reasons ranging from incorrect Firewall configurations, network issues, problematic updates, incomplete updates installation to conflicts with .NET Framework.

Update Your Drivers

Drivers are a group of files that allow communication between your computer’s hardware and operating system.

It is more likely that the outdated system or peripheral drivers may have caused this issue.

Manually Update Drivers

One way to update your drivers is to check the website of your manufacturer and go to the Drivers & Downloads section.

At this point, you’ll have to select your Operating System name, OS type (32/ 64 bit), device model and other configurations.

Follow the same procedure for each device installed on your computer.

Automatic Driver Update (Recommended)

Quite frankly, it may seem to make sense to update all drivers at once using a Driver Updater than manually searching them online.

And not to mention if you manually download a wrong driver version it can ruin the entire system or cause frightening data loss.

We’ll see below how to update your drivers with just a few clicks:

1.Click the button below to Free Download iObit Driver Booster.


Estimated download time: 5 Seconds

2. Double-click the Setup to run and install the product.


3. Please wait while the program is being installed.

Installation Status

4. After the installation finishes, the driver scan should take place automatically.

If it doesn‘t, click the Scan button.

Driver Scan

4. Looking ahead, you’ll have a comprehensive list of all outdated drivers on your screen.

Automatically Update Drivers

5. Click the Update Now button to update all outdated devices automatically.

Uninstall Problematic Updates

Here is the list of well-known updates that might cause this issue. Try uninstalling them and then restarting your computer. This might fix the issue.

  1. Press Windows Key + X.
  2. Select Control Panel.
  3. Click Programs.
  4. Click View Installed Updates under the Programs and Features category.
  5. Look for the following updates:
    • KB2966826, KB2966827 and KB2966828
  6. Uninstall them one by one. (Right click > Uninstall)

Rename Software Distribution Folder

You might want to stop associated services and then stop the Software Distribution and other services.

  1. Press Windows Key + X.
  2. Select Command Prompt (Admin).
  3. Execute the following commands:


Re-enable .NET Framework

A temporary glitch with the Microsoft .NET Framework can cause 0x800F081F error. Disabling and re-enabling this feature might solve the problem.

  1. Press Windows Key + X.
  2. Select the Programs and Features.
  3. Click Turn Windows Features On or Off.
  4. Select Microsoft .NET Framework 3.5
  5. Click OK.
  6. Re-enable the .NET Framework again.

Change Gpedit Settings

Group Policy Editor enables users to change the administrator policy settings with the use of Microsoft Management Console (MC) snap-ins.

  1. Press Windows Key + R.
  2. Type gpedit.msc
  3. Click OK.
  4. Expand the following node:
    • Local Computer Policy | Computer Configuration | Administrative Templates | System
  5. In the right hand side panel, double click on Specify settings for optional component installation and component repair.
  6. Select “Enabled” option.
  7. Click OK.

Check Internet Connectivity

You may have network connection issues. Use the Network Troubleshooting utility to find and fix such issues.

  1. Press Windows Key.
  2. Type Network Troubleshoot in the Search Box.
  3. Open Identify and Repair Network Problems from the Search Results.
  4. The wizard will start detecting problems and fix them.

Change SXS Folder Security Settings

Make sure the SXS sub-folder in the .NET Framework directory has necessary read/ write privileges. Change the folder security settings.

  1. Go to the Microsoft .NET Framework installation directory.
  2. Double-click the Sources folder.
  3. Right-click SXS, select Properties.
  4. Click the Security tab in the new dialog, and then click the Edit button.
  5. Check-up all the boxes under the Allow column.
  6. Click OK | OK.
  7. Type CMD in the Search Box on your Taskbar.
  8. Right-click Command Prompt, select Run as administrator.
  9. Execute the following commands:
    • dism /online /enable-feature /featurename:netfx3 /all /source:c:\sxs /limitaccess
    • dism /online /Cleanup-Image /RestoreHealth