I'm trying to install Office 2016 and it says it cant install because it detects another version that will conflict with it. Its not in my add or remove programs and I checked my program files and x86 folder and removed any Office folders from there but its still refusing to install since it still sees previous versions somehow. Is there a program I can get to completely remove Microsoft Office from my drive so I can freely install this new one? I'm running Windows 7 Ultimate SP1 I get this message Error 1920. Service 'Office Software Protection Platform' (osppsvc) failed to start. Verify that you have sufficient privileges to start system services. https://support.microsoft.com/en-us/kb/2401987 I tried both the automatic solution and the manual one and both failed. How else can I remove Microsoft Office?