K450 USB Ports and Card Readers not working

When I plug in devices to my K450 ideacentre desktop USB ports, they are not recognized. The same for a couple of memory cards I have tried in the card reader. These are all working fine when put in other computers. The card reader and USB ports do work when I insert a multi card reader into the USB port or a multi USB port into the USB port (and then use either of those to read the same external hard drive or memory cards that don't show up when installed directly). Any idea what this could be? I'm sure it's something simple that I'm missing but I can't figure it out. I'm running Windows 8. Thanks for any help!

I wanted to add to this...I did plug in a CF card the other day and that was recognized. I then tried my external hard drive directly again in a front USB port and it worked for a while (an hour or so). Then it suddenly was not there anymore as if I'd ejected it even though I didn't. Tried to put it back in and nothing. This tells me it may be a hardware problem since it "recognized" it for a bit. It's very frustrating.

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Hello, @LeapM
Welcome to the HP Forums.
I see that you cannot use any USB ports or the fingerprint scanner. That you have error code 19. I will try to assist you with this.
Here is a Microsoft document that may help you: Error codes in Device Manager in Windows. It will explain what the error code is and provide steps to try and resolve.
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Thank you for posting on the HP Forums.
I worked on behalf of HP.

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[email protected]

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K450 USB Ports and Card Readers not working

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