Hello,
The error code 0x800f081f is often related to issues with the .NET Framework or Windows Update components. Here are some steps you can try to resolve this issue:
Enable .NET Framework 3.5:
Open the Control Panel.
Go to Programs > Turn Windows features on or off.
Check the box for .NET Framework 3.5 (includes .NET 2.0 and 3.0).
Click OK and follow the prompts to install it.
Run the Windows Update Troubleshooter:
Go to Settings > Update & Security > Troubleshoot.
Select Windows Update and run the troubleshooter.
Use the DISM Tool:
Open Command Prompt as an administrator.
Run the following commands one by one:
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
Run the System File Checker (SFC):
In the Command Prompt, type:
sfc /scannow
Press Enter and wait for the process to complete.
Reset Windows Update Components:
Open Command Prompt as an administrator.
Run the following commands:
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
Manually Install the Update:
Download the update from the Microsoft Update Catalog.
Run the downloaded file to install the update manually.