For those who prefer automatic uninstall, there is a Microsoft Office 2007 Complete Clean Registry Removal Tool available. Step 1: Remove any remaining Windows Installer packages of the 2007 Microsoft Office system. 1  Click Start, click Run, type installer, and then click OK to open %windir%\Installer folder.2  On the View menu, click Details. ( 3 In Windows Vista, press the ALT key to display the menu bar). 4  On the View menu, click Choose Details.or those who prefer automatic uninstall, there is a Microsoft Office 2007 Complete Clean Registry Removal Tool available. Step 1: Remove any remaining Windows Installer packages of the 2007 Microsoft Office system. 1  Click Start, click Run, type installer, and then click OK to open %windir%\Installer folder.