I'm still stuck! Took my laptop in to my tech for some other tweaks and he did his best to update all drivers. We did format the new SD card in my laptop--card was doing it's job recording CPAP information--as I knew the machine would put the info back on. That night when I put it in my CPAP got bells and whistles telling me the SD card was corrupted and to format it I did so (in the machine) and has worked well on the machine statistics since. It still won't work on the laptop I have used both my built-in card reader and a usb portable card reader--same results. Took two SD cards (one Respironics one and a new PNY card) to my DME office and both cards work fine on their computer. If it helps any computer techies out there, I'm using a high end Dell Vostro 3750 laptop made in 2013, refurbished by a licensed Microsoft repair guy with Windows 10, a new motherboard and upgraded hard drive. It is big, heavy and fast and I love it--except for this problem. I NEED to be able to red SH on a portable device!
It looks like you have some serious problem with your usb-thingies. (all that SD-stuff including the build-in reader are using the usb-root-hub)
what you can try: first make a clean boot! (the normal reboot, shutdown or power off does not make a complete shutdown!)
keep the shift-key pressed while you click on "shutdown / power off" in the start-menu.
disconnect every not absolutely necessary usb-device (this includes the mouse - you have a touchpad build in)
restart / power on your windows.
write protect your sd-card.
try to access the sd-card with the explorer and copy the content of that over to your hard-disk.
Before you disconnect any usb-device unmount it using the usb-icon in the systemtray (that really helps a lot) - this includes all SD-Cards!
If that works (more than just once) you need to do some tweaking ... starting point would be to disable all the fancy energy-saving crap (only) for the USB-devices. (basically your root-hubs and the controller)
Disabling fast startup in windows 10 in general solved like a ton of driver related problems for me. (I barely restart .. I always hibernate (which does not work out of the box^^))
if that doesn't work or is simply not for you, you can try something different:
if your router / accesspoint has USB and some basic nas functions you can also try to plug your (write protected) SD-Card with your external reader in there. Or if you have some sort of "home-Nas" or a printer - most of them have SD-Readers build in^^
.. or simply use a wifi-sd-card^^ (although that might be a little bit out of your comfort zone)
Thanks so much, TBMx. The info on the USB hub might be the problem. My two USB 3.0 plugs connectors quit working this weekend--our computer guy has replacements ordered for install tomorrow. The USB 2.0 still works. I'm going to copy this email and take it to him--I'm not technically-inclined enough to try this on my own! I had thought of using a wifi SD card--I know I can get help for step by step install from the good folks here on the forum. Don't know much about them--I imagine it also goes through the router? I hope to have something working that we can use off the grid in our travel trailer--I have a battery pack for the CPAP machine and we have a generator to provide power to recharge batteries.