I'm trying to uninstall SharePoint Designer 2010 (32 bit) from my client PC. When I go to Control Panel > Uninstall a program > SharePoint Designer 2010 > Uninstall, I receive the following error:

A required C:\users\USERNAME\AppData\Local\Temp\Setup00000f90\OSETUP.DLL cannot be loaded. This may indicate that the file is missing or damaged.

This error prevents me from re-installing SharePoint Designer 2010 in another language.

How can i fix this error so I can re-install from language A to language B?

Thank you in advance.

1 Answer 1


Download and install SharePoint designer as if it was never on your computer. This should replace any missing files from the original install. Then uninstall it.


  • Downloaded the SharePoint Designer 2010 installation file. Next I executed this file and chose the Remove option. SharePoint Designer 2010 successfully uninstalled this way without the OSETUP.DLL error. Thank you Taber-Brown!
    – TempaC
    Jun 6, 2013 at 11:33

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