Cannot eject passport from pc

WD External Drives WD Portable Drives
4

Usually your anti-virus is causing that message.

http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=274&p_created=1023392680&p_sid=Y-c-SChk&p_accessibility=0&p_redirect=&p_srch=1&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTc2LDE3NiZwX3Byb2RzPTAmcF9jYXRzPTAmcF9wdj0mcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9mbmwmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD13b24ndCBzYWZlbHkgcmVtb3Zl&p_li=&p_topview=1