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The Windows 10 Error code 0x800F081F is one of four possible error codes that all refer to the same underlying problem. The other three are error code 0x800F0906, error code 0x800F0907, and error code 0x800F0922.

Microsoft .NET Framework 3.5 incompatibilities cause all error codes. They usually occur when you enable the .NET Framework by using the Setup Wizard, the Deployment Image Servicing and Management (DISM) tool, or Windows PowerShell commands.

You will only see the codes under Windows 10, Windows Server 2016, Windows Server version 1709, Windows 8.1, Windows Server 2012 R2, Windows 8 and Windows Server 2012. On these operating systems, Microsoft .NET Framework 3.5 is a “Request” . When you enable the feature, Windows Update attempts to recover the .NET binaries with the other necessary files. If your computer is not properly configured, you might see the codes.

Solution to Fix Error code 0x800F081F

Solution 1: Configuring your Group Policy

One way to fix the 800f081f error code is to configure your group policy. After all, some issues may affect the ability of your operating system to activate the installation. Note that the Group Policy Editor is available natively on the Enterprise, Pro, and Education versions of Windows 10. Therefore, if you are using a different version of the operating system, you will not be able to see the functionality. That said, you can always get rid of the error code by following the instructions in the following solution.

To begin, follow these steps:

1. Launch the Run dialog box by pressing Windows Key+R on your keyboard.
2. Now, type “msc” (no quotes) inside the box, then click OK. Doing this should let you open the Group Policy Editor.
3. Once the Group Policy Editor is up, go to the left-pane menu and navigate to this path:

Computer Configuration ->Administrative Templates ->System

1. Go to the right panel, then scroll down until you find the ‘Specify settings for optional component installation and component repair’
2. Double-click the entry, then go to the top left-hand corner to select the box beside Enabled.
3. Click OK.

Solution 2: Using a DISM Command to Enable the .NET Framework

In this method, you must run a DISM command to enable the .NET Framework. The process is not complicated as long as you follow the instructions exactly. Before proceeding, you must obtain an ISO image of Windows 10. Remember that the version you will acquire must match your current operating system. You can use the media authoring tool to create an ISO image. You can download this tool from the Microsoft website.

Once you have downloaded the media creation tool, launch it and click on the option “Create an installation media for another computer”. A new screen will open and you will need to select your language and your system architecture. Choose the ISO file to begin the creation process. Save the ISO file to a USB flash drive or burn it to a DVD. Once you are done, you can start troubleshooting the error code by doing the following:

1. Insert the DVD or plug the USB flash drive with the ISO file to your computer.
2. Double-click the ISO file to mount it automatically. You can also mount the file by clicking on it with the right mouse button and selecting Mount in options. Look at the left panel of the window. You should be able to see the ISO in a virtual drive here if the process has succeeded. Take note of the reader’s letter. If you want to unmount the image, right-click on the virtual drive in this PC and select Eject from the context menu.
3. Once you’ve mounted the image, click the Search icon on your taskbar.
4. Type “cmd” (no quotes) inside the search box.
5. Right-click Command Prompt from the results, then choose Run as Administrator.
6. Once Command Prompt is up, paste this text:

ism /online /enable-feature /featurename:NetFx3 /All /Source:[Drive]:\sources\sxs /LimitAccess

Note: Remember to replace [Drive] with the letter you took note from Step 2.

1. Press Enter to run the command.

Reinstalling Microsoft .NET Framework 3.5

1. Go to your taskbar and right-click the Windows icon.
2. Select Settings from the options.
3. Inside the Settings app, click Apps, then select Apps and Features.
4. Scroll down until you find the Related Settings section. Click Programs and Features below it.
5. Go to the left-pane menu, then click the ‘Turn Windows features on or off’
6. Look for the ‘.NET Framework 3.5 (includes .NET 2.0 and 3.0)’ entry and select the box beside it.
7. Click OK to start the installation process.

If you can install Microsoft .NET Framework 3.5 without any problems, it means that you have eliminated error code 0x800F081F.