http://blogs.msdn.com/mikester/archive/2008/07/02/hyper-v-rtm-and-winpe-synthetic-devices.aspxNow that we've reached the RTM milestone with Hyper-V (and why I'm actually on vacation), here's the updated script for how to add the Hyper-V synthetic drivers to WinPE (original post here ) %echo off set MSUSOURCE=D:\synth\rtm\amd64 set PESOURCE=D:\winpe_x64_syntheticen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/mikester/archive/2008/07/02/hyper-v-rtm-and-winpe-synthetic-devices.aspx#8681348Wed, 02 Jul 2008 16:03:45 GMT91d46819-8472-40ad-a661-2c78acb4018c:8681348Hyper-v<p>Mike&amp;#39;s Blog: Now that we&amp;#39;ve reached the RTM milestone with Hyper-V, here&amp;#39;s the updated script</p> http://blogs.msdn.com/mikester/archive/2008/07/02/hyper-v-rtm-and-winpe-synthetic-devices.aspx#8763364Tue, 22 Jul 2008 11:43:29 GMT91d46819-8472-40ad-a661-2c78acb4018c:8763364Mark's Windows Server Blog<p>In the week or so since Hyper-V RTMed there has been a huge amount of coverage on various websites. Here&amp;#39;s</p>