Fix Error 0x803c0103 in Windows Update Troubleshooter

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If y'all receive Error 0x803c0103 when running the Windows Update Troubleshooter, this post will help you resolve it. While the troubleshooter is meant to resolve the problem but in this case, it as well gets stuck and is unable to prepare.

What is Fault Code 0x803c0103?

Error Code 0x803c0103 'Unexpected fault' occurs when the Windows Update Troubleshooter fails to run and the troubleshooting wizard cannot proceed on your Windows computer. Use FixWin to fix this mistake.

Fix Error 0x803c0103 in Windows Update Troubleshooter

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

Run SFC and DISM Tools using FixWin
Reset catroot2 and SoftwareDistribution folders using FixWin
Reset Windows Update Component
Organization Restore
Run Windows Update Troubleshooter in Clean Boot State.

Before you lot begin, download our portable freeware called FixWin, extract the contents and run FixWin.exe as administrator

1] Run SFC and DISM Tools

The System File Checker will repair and supercede corrupted Windows Os files whereas the DISM Tool will repair a corrupted system prototype.

Open FixWin and from the Welcome folio click on Run Arrangement File Checker first. Wait for the browse to complete and so restart your computer.

If in that location is an upshot, the tool will inform about it and fix the problem automatically.

If your Windows Update client is already broken, you volition be prompted to use a running Windows installation as the repair source or utilise a Windows side-by-side folder from a network share, as the source of the files.

You will then be required to run the following command instead in an elevated Command Prompt for DISM:

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

Hither you have to supersede the C:\RepairSource\Windows placeholder with the location of your repair source.

Once the process is complete, DISM will create a log file in %windir%/Logs/CBS/CBS.log and capture any problems that the tool finds or fixes.

ii] Reset catroot2 and SoftwareDistribution folders

Next, you demand to reset the catroot2 and SoftwareDistribution folders.

Open up FixWin > Additional Fixes and press the required buttons one after the other.

3] Reset Windows Update Component

1 concluding thing you tin can do is reset the Windows Update components as follows:

Cease Windows Update Services
Delete the qmgr*.dat files.
Affluent the SoftwareDistribution and catroot2 folders
Reset the Bits service and the Windows Update service to the default security descriptor
Re-register the $.25 files and the Windows Update related DLL files
Delete incorrect Registry values
Reset Winsock
Restart Windows Update Services.

Hither is the summary of all the steps you need to take to reset Windows Update Components to defaults in Windows 11/10:

4] Run Windows Update Troubleshooter in Clean Kicking State

Perform Clean Boot, run FixWin equally ambassador > Troubleshooters tab, and then click on the Windows Update Troubleshooter to run it.

Come across if it works now.

five] System Restore

The last selection is to perform a System Restore if you take any. While you can e'er open Organization Restore from Ultimate Windows Tweaker's Welcome folio with a click, hither is the traditional method to do so.

Printing the First cardinal, blazon System Restore and launch the Recovery tool when it appears on the listing. Click on Open System Restore, and either choose the recommended date or ane from the list which you think will piece of work the best.

I hope the post helps yous fix Error Code 0x803c0103.

Anand Khanse is the Admin of TheWindowsClub.com, a x-year Microsoft MVP (2006-xvi) & a Windows Insider MVP. Please read the entire post & the comments first, create a Arrangement Restore Indicate before making any changes to your arrangement & be careful well-nigh any 3rd-political party offers while installing freeware.