Camera Update 4.4 unsigned driver error - Win 10

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Todd Takehana

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Camera Update 4.4 unsigned driver error - Win 10

PostFri Jul 28, 2017 12:19 am

I have an Ursa Mini 4.6k currently on camera software 4.3.1. I downloaded the 4.4 update to my laptop (which didn't have any BM software on it previously). The installer works, but when I connect my camera via USB the camera does not show up. Looking at Device Manager I get this message:

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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)


I'm on Windows 10 Creator's update x64.

Any ideas?
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Tony Rivera

Blackmagic Design

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Re: Camera Update 4.4 unsigned driver error - Win 10

PostFri Jul 28, 2017 6:19 pm

Did you try uninstalling the updated and redownload the software from the support page already? It could very well be the download was corrupted.
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Todd Takehana

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Re: Camera Update 4.4 unsigned driver error - Win 10

PostSun Jul 30, 2017 10:04 pm

Tried that. Uninstalled, rebooted, redownloaded, reinstalled, rebooted, and tried again. Same issue

Then tried with a different computer (Win10 anniversary edition desktop PC) and it worked. Quite annoying
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Tony Rivera

Blackmagic Design

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Re: Camera Update 4.4 unsigned driver error - Win 10

PostMon Jul 31, 2017 10:37 pm

Was the original computer you tried the software on updated to the most current release from Windows?
Support: http://www.blackmagicdesign.com/support
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HansSpoor

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Re: Camera Update 4.4 unsigned driver error - Win 10

PostTue Aug 01, 2017 1:19 pm

You better search through Google for "windows 10 disable digital driver signature verification"

64-bit versions of Windows 10 and 8 include a “driver signature enforcement” feature. They’ll only load drivers that have been signed by Microsoft. To install less-than-official drivers, old unsigned drivers, or drivers you’re developing yourself, you’ll need to disable driver signature enforcement.
(When Secure Boot is enabled, this could also give issues)

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