Microsoft will release seven security updates on Tuesday, three of them critical. The updates will patch Internet Explorer, Windows, Office suite, SharePoint and Exchange server software. The latest update was originally intended to ship last month, but Microsoft pulled it at the last minute. The seven updates were half the number the Redmond, Wash. company shipped in November, and the fewest since September. One of the seven “bulletins,” as Microsoft calls its updates, sketched out in today’s advance notice, will patch all supported versions of Microsoft’s IE.”]