如果您有一台Windows 7计算机并尝试播放DVD，您可能会收到以下错误消息：

Windows Media Player cannot play this DVD because it is not possible to turn on analog copy protection on the output display. Try installing an updated driver for your video card.

嗯^(Hmmm)。您可能认为这很疯狂，因为您的计算机是全新的，或者您有一个相当新的视频图形卡。那么究竟是什么问题呢？

好吧，如果您的Windows 7^{(Windows 7)}计算机只有在克隆模式下（两个显示器上的相同桌面）具有不同或具有不同分辨率的 2 个显示器（多个显示器）时，您才会看到此错误。

一台视频监视器可能支持隔行扫描 1080i 分辨率，而另一台则不支持。在这种情况下，Windows Media Player将无法更改桌面分辨率并因此启用内容保护。

为什么这首先会阻碍 Windows 启用内容保护？不知道！不幸的是，确实如此！太^(Pretty)疯狂了哈！

修复 Windows Media Player^{(Fix Windows Media Player)}无法播放DVD

因此，您可以通过以下方法修复它，以便您不再收到此错误消息：

1. 右键单击​​您的桌面并选择屏幕分辨率^{(Screen Resolution)}。

2. 继续选择两个显示器都支持的分辨率。您可能必须降低其中一台显示器的分辨率才能使其正常工作。现在尝试播放您的DVD。

解决此问题的第二种方法是仅使用一台显示器而不是两台显示器。您可以通过再次转到屏幕分辨率^{(Screen Resolution)}然后选择“仅在 x 上显示桌面^{(Show desktop only on x)}”来执行此操作，其中 x 是与每个显示器对应的数字。

当然，这并不理想，但您可能只需要在播放DVD时这样做。之后，您可以重新激活第二台显示器。

最后，您还可以通过在扩展模式下使用两个显示器来解决此问题。只需^(Simply)按 Windows + P并选择Extend。

这基本上意味着桌面将从一台显示器扩展到第二台显示器，而不是克隆。如果您仍然遇到问题，请查看我的另一篇文章，该文章对WMP 进行了其他修复，无法播放 DVD^{(WMP won’t play DVDs)}问题。享受！

Fix “Windows Media Player cannot play this DVD…analog copy protection” in Windows

If you have a Windows 7 cоmputer and you try to play a DVD, уou might get the following error message:

Windows Media Player cannot play this DVD because it is not possible to turn on analog copy protection on the output display. Try installing an updated driver for your video card.

Hmmm. You’re probably thinking that is crazy since your computer is brand new or you have a fairly new video graphics card. So what’s the problem exactly?

Well, you will only see this error if you have a Windows 7 computer with 2 monitors (multiple monitors) that are either different or have different resolutions while in clone mode (same desktop on both displays).

It could be possible that one video monitor supports interlaced 1080i resolution whereas the other one does not. In this case, Windows Media Player will be unable to change the desktop resolution and hence enable content protection.

Why exactly does this hinder Windows from enabling content protection in the first place? No idea! Unfortunately, it does! Pretty crazy huh!

Fix Windows Media Player Cannot Play DVD

So here’s how you can fix it so that you no longer get this error message:

1. Right-click on your desktop and choose Screen Resolution.

2. Go ahead and pick a resolution that is supported by both monitors. You may have to lower the resolution of one of the displays in order for this to work. Now try playing your DVD.

The second way to fix this problem is to only use one monitor instead of two. You can do this by going to Screen Resolution again and then choosing “Show desktop only on x” where x is the number corresponding to each display.

Of course, this is not ideal, but you may only have to do it while playing your DVD. After that, you can re-activate the second monitor.

Finally, you can also fix this problem by using both displays in extended mode. Simply press Windows + P and selecting Extend.

This basically means the desktop will be extended from one monitor to the second, not cloned. If you’re still having problems, check out my other post that has other fixes to the WMP won’t play DVDs problem. Enjoy!

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