Invalid Windows feature name has been specified as a parameter.
Error code: 0x800f080c
Dont worry.
In this case, you’re able to drop in the latest framework update via Windows Features.

Typeappwiz.cpland hitEnterto openPrograms and Features.
In the left pane, click onTurn Windows features on or off.
Check .NET Framework 3.5(this package includes .NET 2.0 and 3.0) and hitOKto save the changes.

Fix 2: Run Combination of SFC & DISM Scan
Step 1.
Typecmdin the search bar to locateCommand Promptand right-press it to selectRun as administrator.
Fix 3: Disable Core Isolation Memory Integrity
Thememory integrity featureis part ofWindows Core Isolation.
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It is a virtualization-based security feature that can prevent threat actors from inserting malicious code into high-security system processes.
If you receive the error 0x800f080c on a virtual machine, disabling this feature might be an effective solution.
Go toUpdate & Security>Windows Update>machine security.

Step 3. select Core isolation details and toggle off Memory integrity.
ALT= hit Core isolation details
Step 4. reboot your virtual machine to check for any improvements.
In this case, running the.NET Repair toolcan help you out.
To do so:
Step 1.
Go to theMicrosoft .NET Framework Repair tool downloadpage and hitDownload.
Checkmark the box associated withNetFxRepairTool.exeand hitNext.
Final Words
This is the end of all solutions for .NET Framework error 0x800f080c.
Sincerely hope that one of them can do the trick for you.
Have a nice day!