HD Movies will not play

This appears to be the same story with Windows 10 as well. As long as the Hyper-V software is installed iTunes will not play any HD related content over a certain resolution. However i have found that *some* HD content will play, but not 1080i/p content. Uninstall all Hyper-V software and everything works again. Wish Apple had mentioned this a little sooner. Wonder if we can ever expect a fix for this?

I had a similar issues. Windows 10 pro connected via HDMI to TV running higher than 1920x1080. Issue was with Display scaling (or DPI). With the UHD resolution made things difficult to see. I had pushed the dpi scaling to 200% so things were easier to see. iTunes apparently does not differentiate between dpi scaling and resolution correctly. Pushing this setting down corrected the issue and allowed me to play in HD. Depending on your resolution you can test and find a setting that will work, but its not actually a resolution issue, just how iTunes detects the resolution with the DPI scaling enabled. By default this not at 100% on over 1080 resolutions. To change setting right click on desktop>display settings. Slider at the top is the adjustment you need.

-Mr. Adam

Hey hunkanomics!

You might need to try re-downloading these purchases using the following article:

Downloading past purchases from the iTunes Store, App Store, and iBooks Store

http://support.apple.com/kb/ht2519

Take care, and thanks for visiting the Apple Support Communities.

-Braden

I am having the exact same problem since I updated to the latest version of iTunes yesterday. :/

This is for the Windows 8-8.1 users out there: If you have the Pro version of Windows 8 and just recently upgraded to 8.1, Microsoft automatically includes a Virtual Machine package called Hyper-V Client. It doesn't ask you if you want to install it, it just does.

The Hyper-V package installs a secondary video driver that breaks HDCP, which means you can't play HD movies even on a compliant system. You need to get rid of it. To do so:

1. Go to Control Panel
2. Programs and Features
3. Turn Windows Features on or Off
4. Uncheck "Hyper-V"
5. Reboot.

This applies to almost anything that requires HDCP, so if you're having trouble with Blu-Rays or Amazon Prime, that's likely the culprit.

I have the same problem and also have Windows 8 Home and it does not support the Hyper-V. All my HD movies played prior to getting the latest update from Apple.

I would check your windows features regardless - there's no "Home" Windows 8, but there is the core edition. MS was offering Pro for cheap during the upgrade sale so a lot of people got Pro without realizing it.

NashBridges you need to check your facts. There are three different versions of Windows 8. They are Basic, Pro and Enterprise. Basic is the consumer version which is what you get from the hardware vendor. This also would be equal to Windows 7 Home. Pro and Enterprise typically are for the corporate infrastructure. Both Pro and Enterprise will have the option of the option for hyper-v. Hyper-v is used in visualization and disabling this function would break any apps that are sent using App-V or in a VDI infrastructure.

This problem needs to be escalated to the developers as this issue is there in there query of the video adapter. I am running the latest video drivers and have the same problem. I check with the hardware vendor with the video that that is in my laptop and there are no updates available. Version prior to the 11.1.4.62 does not have this problem. All my HD videos work correctly except for what is on Itunes.

Also disabling a feature is only a workaround and not a fix. You must find the root cause of the problem and fix it there vs. using a workaround. Workarounds typically causes other problems and should only be used in extreme circumstances.

I just asked him to make sure, no need to get snotty about it.

The root cause of the problem with Hyper-V must have something to do with the video driver it installs to manage virtual machine displays. VMWare Workstation does not cause the same issue, but Hyper-V appears to break the HDCP chain. Apple may or may not be able to work around that.

hello hunkanomics, could you get some solution? I have exactly same issue. I tried everything. Nothing seem to work on my windows 8