Internet Explorer 9 and 10 are not affected by this issue, so upgrading to these versions will help protect you from this issue. Microsoft Releases Security Advisory 2847140 - MSRC IE 9 にアップグレードできない XP は IE を使うなと。

Version 3.0.0.7009 (2nd May 2013) This is a minor maintenance release. The primary changes are: General Enhancements: Auto-update stuck at "Verifying update". Fixed. The Secunia PSI now actively polls for the status of each on-going update…

バージョン: 320.00 WHQL リリース日: 2013.05.03 GeForce はまだベータ バージョン: 320.00 BETA リリース日: 2013.04.23