Author Topic: Win 10 Not Recognizing Compact Flash (KomputerBay 128GB 1066x - UDMA7)  (Read 605 times)


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Hi team, I searched these forums and Googled many hours before posting this.

I was using ML on 5DM3 fine for a few months. One day I turned the camera stated the CF card could not be read (don't remember exact msg). Anyway, I sent the card in for a replacement and got another one.

So the camera is able to see the card and write to it, however, Win 10 no longer recognizes it. I tried two different USB readers and I noticed there's a device that appears as "Unspecified device" in the Device Manager. I believe this is the CF card, but Win10 doesn't seem to recognize it. I'm certain it's been this way since the previous CF card was corrupted. Looks like Win10 drivers got messed up. I'm not sure where to go from here. I just want to record some RAW video onto the CF card.

Also, on another note, does anyone just use plain SD cards on the 5DM3 instead of writing to CF card? Just curious.

-=Device links=-
CF Card:
USB Reader1:
USB Reader2:

Thanks for your help!

Walter Schulz

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Re: Win 10 Not Recognizing Compact Flash (KomputerBay 128GB 1066x - UDMA7)
« Reply #1 on: August 10, 2020, 05:24:32 PM »
Lowlevel format card in cam and retry.