Formula Assistance

Need Excel Guru help…maybe not guru but more than I do:

Guys,
I need help with a project given to me by my boss. We had a programmer run an SCCM report that reported on all our computers and what version of Office was being run. Apparently, when the push to a new version was made they never uninstalled the previous version and just installed the newer version. My task with this Excel spreadsheet is to identify ONLY those people who don’t have 2010 already installed. As you can see from this brief mockup, the SCCM report lists the same computer but with multiple versions. I need to know a formula to strip out the duplicates that have 2010 installed and leave me with a list of machine names that do not have 2010 installed what so ever. The spreadsheet here in only about 15 rows, the real spreadsheet is over 2500 rows and I don’t want to do this project by manually deleting the duplicate machine names that do have 2010 installed.

In this instance the result would be that 2 people did not have Office 2010 (Rob and Celeste)

Any help would be appreciated!!!! File attached.