These instructions refer to installation of Endnote X4 on your own PC or laptop - they assume WindowsXP. Mac users should consult the information about using EndNote on a Mac. Ensure any earlier versions of Endnote are removed before installation of X4.
Using
...
Office
...
2010
Endnote X4 is compatible with Office 2010 and earlier. See the Endnote site for up-to-date details on compatibilities.
...