How To 

How to fix Windows 10 error 0x800F081F

Windows 10 error f081f usually appears in recent upgrades or installs where the .NET framework 4.5 is installed by Windows but programs you later install require version 3.5. For some reason, version 3.5 isn’t installed by default and can occasionally have trouble downloading the update from Microsoft. Fortunately, it is simple to fix the Windows 10 error 0x800F081F.

Fix Windows 10 error 0x800F081F
To make the final step work you will need a copy of the Windows 8 installation media. Before that, try a couple of quick fixes that have been known to work.


Run Windows Update and make sure you have all the latest updates.


1. Open a CMD window as an administrator.
2. Type or paste ‘sfc /scannow’ and hit Enter. This will check file integrity.

From Windows 8 installation media:

1. Open the Windows 8 media and find \sources.
2. Type or paste ‘Dism /online /enable-feature /featurename:NetFx3 /All /Source: PARTITION:\sources\sxs /LimitAccess.
3. Type or paste ‘dism /online /Cleanup-Image /RestoreHealth’ and hit Enter.

Where you see PARTITION, put the drive letter of the Windows 8 media. For me, this was ‘Dism /online /enable-feature /featurename:NetFx3 /All /Source:E:\sources\sxs /LimitAccess' as the installation DVD was in my E: drive.

One of these steps is sure to fix the 0x800F081F error. If you have any other tricks that work, let us know below!

Learn more about Windows 10 with these tutorials:
How to check if Windows 10 is 32 or 64-bit
How to check your version of Windows 10
How to use multiple desktops in Windows 10