Error Code 0x803c0103 ‘Unexpected error’ occurs when the Windows Update Troubleshooter fails to run and the troubleshooting wizard cannot continue on your Windows computer. Use FixWin to fix this error.

If Windows Update Troubleshooter displays Error 0x803c0103 while troubleshooting, then use FixWin to carry out these suggestions and successfully resolve the issue:

1] Run SFC and DISM Tools using FixWin

2] Reset catroot2 and SoftwareDistribution folders using FixWin

3] Reset Windows Update Component

4] System Restore

5] Run Windows Update Troubleshooter in Clean Boot State

Timecodes:
0:00 Intro
0:32 Run SFC Scan
0:56 Reset folders and WU components
1:12 System Restore
1:40 Clean Boot

Learn more on https://www.thewindowsclub.com/0x803c0103-windows-update-troubleshooter

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