Hello
The error code 0x800703F1 usually indicates that the configuration registry database is corrupt. Here are some steps you can take to resolve this issue:
Run the Windows Update Troubleshooter:
Press Win + I keys simultaneously to open Windows Settings.
Choose System > Troubleshoot > Other troubleshooters.
Locate the Windows Update troubleshooter and click its Run button.
Reset Windows Update Components:
Press Win + R to open Run, then type: services.msc and press Enter to open Services app.
Double-click Background Intelligent Transfer Service. If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart.
Double-click Windows Update. If the Startup status lists Stopped, click Start and then click OK. If the status is Running, right click then select Restart.
Check the SCHEMA.DAT file:
Navigate to C:\Windows\System32\SMI\Store\Machine and copy the SCHEMA.DAT file to your desktop.
Right-click on this file on your desktop and select Send To > Compressed (zipped) folder. This will create a file named SCHEMA.ZIP on your desktop.
Replace the SCHEMA.DAT file.
Run setupdiag.