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Previews of media files are disabled by default in Windows Server 2008. In this article we will enable it so we get the small previews back again!
1. Open the?Start?menu and click?Run. Now enter?SystemPropertiesPerformance?and click?OK. In the?Performance Options?window at least check the?Show thumbnails instead of icons?option. If you are using themes you should also check the?Use visual styles on windows and buttons?option to keep you theme.
2. If we now browse to?C:Windows\WebWallpapers?as a test we can see that we now have previews for pictures! Previews should also work for most movie files. Note that you have to set the?View?to?Small Icons,?cialis sale?Medium Icons,?find?Large Icons?or?Extra Large Icons?in order to see the previews.
Windows server 2008 R2如何预览图片而不是显示图标？
原文：http://www.cnblogs.com/time-is-life/p/7349880.html