Hello,
I get the following error message every time I start OUTLOOK or open an email message. The error says “Error Loading in Custom UI XML”. I have tried to install the program again but the error exists. Provide resolution to fix this error. Thanks in advance.
Error Loading in Custom UI XML:
Line: 1
Column: 79
Error code 0x80004005
Unknown Namespace: http://schemas.microsoft.com/office/2007/10/customui
Element: Custom UI
Error loading in Custom UI XML when starting outlook
Ensure outlook is in safe mode.
Press down the CRTL key and click outlook icon, ensure outlook is in safe mode. If you can work without any issue then the problem is due to an add-ins that you cannot open. Follow the following steps in order to disable add-ins in outlook.
Open outlook
Click on file – option- add-ins
Click on add-ins and uncheck add-ins, then click OK
Close and open outlook and check add-ins
Error loading in Custom UI XML when starting outlook
Hi Ronald,
To the majority of OUTLOOK users are not experiencing such problem, I think any customization you may be done at the Ribbon. Fixing such error for any application of OFFICE 2010 follow the below steps:
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Open the OPTIONS dialog
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Click to the QUICK ACCESS TOOLBAR
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Click to the RESET button and then click for RESET ALL CUSTOMIZATIONS
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And finally RESTART the Application
If the said steps doesn't sufficient not to fix the problem, you may also check the below link to find help more
All the best
