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.
First:
Run Windows Update and make sure you have all the latest updates.
Then:
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:sourcessxs /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:sourcessxs /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
Depending on the version of Windows you're using, there are several different ways to automatically repair major Windows operating system problems without resorting to a destructive process, like a Reset Your PC or a Windows Clean Install.
The newest versions of Windows have really easy, automated ways of repairing problems that you might have tried to fix manually but were unsuccessful at, like random error messages, overall slowness, or even problems that prevent Windows from starting at all.
It's a mixed bag with older versions of Windows, with some automatic repairs for certain types of issues or all-or-nothing repair processes that, while sometimes might seem like overkill, are certainly welcome when you need them.
How Do I Automatically Repair Windows Problems?
To fix tiworker.exe windows modules installer worker High Cpu usage. Windows modules installer worker high System resource usage, tiworker high CPU usage windows 10 problem, Run Windows Update Troubleshooter, Temporarily Disable Automatic updates, Tweak SoftwareDistribution folder, Run DISM and System File Checker.
Most of the time, especially when a major problem is occurring, the best way to automatically repair Windows is to boot from recovery media, or the original Windows setup media, and choosing the correct diagnostic option.
The specific steps involved in performing a Startup Repair, a Repair Install, or a Refresh Your PC can differ considerably depending on the operating system used.
See What Version of Windows Do I Have? first if you're not sure which of the versions of Windows listed below is installed on your computer.
Please don't use what you read below as the only troubleshooting for your problem. Sometimes the ideas below are the best bet, but other times there are much more simple and effective solutions. So, if you haven't already, search through Lifewire for the specific error message or behavior that you're seeing - we might have much more specific advice to give.
Automatically Repair Windows 10 or Windows 8
Windows 10 and Windows 8 have the greatest number of automatic repair options, which is no surprise considering they're the newest versions of the Microsoft Windows family.
A Startup Repair (formerly called Automatic Repair) is your best bet if Windows 10 or Windows 8 isn't starting correctly. Startup Repair is available from the Advanced Startup Options menu.
See How to Access Advanced Startup Options for instructions on accessing that menu.
If a Startup Repair didn't do the trick, or the problem you're trying to fix isn't related to Windows starting properly, then Reset This PC is your next best bet.
See How to Reset Your PC in Windows 10 & 8 for a step-by-step walkthrough of this process.
The Reset This PC process in Windows 10, called Reset Your PC or Refresh Your PC in Windows 8, is like a 'copy over' of Windows. If you're familiar with Windows XP, it's very similar to the Repair Install process in that operating system.
You have the option of saving your personal data with Reset This PC or have it removed, too.
Automatically Repair Windows 7 or Windows Vista
Windows 7 and Windows Vista have nearly identical processes for automatically repairing important files. This process is called Startup Repair and functions similarly to the Startup Repair in Windows 10 & Windows 8 in that it only fixes problems related to Windows starting properly.
See How to Perform a Startup Repair in Windows 7 or How to Perform a Startup Repair in Windows Vista for tutorials specific to both of those versions of Windows.
Unfortunately, there is nothing like Reset This PC (Windows 10 & 8) or a Repair Install (Windows XP) that works to overwrite all important files, processes that tend to be very helpful when you have particularly stubborn problems in Windows but don't want to lose your important data.
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Automatically Repair Windows XP
Windows XP really only has one automatic repair process, called the Repair Install.
The Repair Install process is very similar to the Reset This PC process in Windows 10 & 8 in that it overwrites all of the important files in Windows XP in an attempt to fix whatever might ail your computer.
See How to Repair Install Windows XP for a complete walkthrough.
While the Repair Install process in Windows XP is not designed to remove any files, I recommend that you play it safe by backing up your important files, which you can automate with an online backup service or an offline backup program (or do it manually by just copying the files). You should also prepare to reinstall your programs just in case the Repair Install damages any of their installations.
If you're using a restore disc from your computer manufacturer instead of original Windows media or a system repair or recovery disc/drive, the automatic repair processes as described in the linked tutorials above may not be possible. In your case, please reference the documentation that came with your computer or contact your computer manufacturer directly for directions.