Today’s Patch Tuesday batch of updates are now live on Microsoft’s Windows Update servers and it looks like Windows 8.1 Preview on Surface RT has four updates available.

Also, as you review this your eyes are not deceiving you – there are two practically identical updates for video playback on the Windows 8.1 Preview. My system required both to be installed.

Update improves online video playback in Windows 8.1 Preview – An update is available for Windows 8.1 Preview. This update includes fixes for adaptive streaming and Digital Rights Management (DRM) playback features in Windows 8.1 Preview.

Update improves online video playback in Windows 8.1 Preview – An update is available for Windows 8.1 Preview. This update includes fixes for adaptive streaming and Digital Rights Management (DRM) playback features for Internet Explorer 11 Preview in Windows 8.1 Preview.

Update improves Adobe Flash Player video playback in Windows 8.1 Preview – On a device that is running Windows 8.1 Preview, a Flash video sometimes quickly lightens and darkens during playback. This causes a flickering effect. This issue occurs when Adobe Flash Player version 11.8.800.94 is installed.

Microsoft Security Bulletin MS13-059 – Cumulative Security Update for Internet Explorer (2862772) – This security update resolves eleven privately reported vulnerabilities in Internet Explorer. The most severe vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited the most severe of these vulnerabilities could gain the same user rights as the current user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.