Microsoft iSCSI Initiator Microsoft iSCSI Initiator Microsoft iSCSI Initiator is a tool that connects external iSCSI-based storage to host computers with an Ethernet network adapter. The iSCSI Initiator is used in Windows Server 2008 R2 and in Windows Server 2012. Share on Facebook Share Share on TwitterTweet Share on Pinterest Share Share on LinkedIn Share Share on Digg Share