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You are here: Home / Operating System / Windows 7 / DVD/CD drives disappear after upgrade from Vista x64 with Windows 7 Beta build 7000

Jan 10, 2009 By Jared Heinrichs Leave a Comment

DVD/CD drives disappear after upgrade from Vista x64 with Windows 7 Beta build 7000

This has to do with the digital signatures of certain drivers that aren’t upgraded quite properly. The typical error message you will see after upgrade is: “Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)”

This will not happen if you do a fresh install of Windows 7 Beta build 7000 64-bit. It’s a known and annoying bug, but it is being worked on for the upcoming builds.

To workaround the issue for now, press [F8] on boot and disable driver signature checking if you need access in the short term before a fix is available.

Filed Under: Windows 7

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