Causes and solutions for "Error 1406" error when installing Office 2010 under Win7

  
 

This is due to a problem with the permissions. Run regedit in the start menu, open the Registry Editor, and navigate to:

HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows
NT\\CurrentVersion\\Image File Execution Optionst and HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\ Microsoft\\Windows
NT\\CurrentVersion\\Image File Execution Options

Right-click on each branch and select “Permissions", in the "Security" tab, add Give the user name you logged in, give full control, and then reinstall Office 2010.

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