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PieterEtzebeth1
Mar 26, 2025Copper Contributor
Excel error - "One or more add-ins failed to install custom functions
I need help.
I had to do a fresh start on my laptop. Since then, all the files that I used Power Query in have given me an error message at the bottom of the screen.
I have tried to remove all the add-ins and restart them, but nothing that I tried worked.
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Worth taking a look at below:
1. Check Disabled Add-ins:
- Go to File > Options > Add-ins.
- At the bottom, select Disabled Items from the dropdown and click Go.
- If any add-ins are listed, enable them and restart Excel.
2. Repair Office Installation:
- Open Control Panel > Programs > Programs and Features.
- Select Microsoft Office and click Change.
- Choose Quick Repair or Online Repair to fix any corrupted files.
3. Reinstall Power Query Add-in:
- If Power Query is a separate add-in, uninstall and reinstall it from the official Microsoft website.
4. Clear Excel Cache:
- Delete temporary files and cache that might be causing conflicts:
5. Check for Conflicting Add-ins:
- Disable all add-ins and enable them one by one to identify the problematic add-in.