Windows 10 2004 makes SDXC card reader pause and stutter

G

Garret Wilson

My SDXC card reader was working perfectly. I would read PDFs on it, play music, and watch videos on it. I'm running a Dell Latitude system.


I waited three months for Microsoft to work the kinks out of the Spring 2020 Windows 10 upgrade version 2004. Then I upgraded to v2004 on August 24, 2020. Now after upgrading my SDXC card reader pauses all the time.

  • When I am browsing via Windows Explorer, when I open some folders everything pauses for a second or two. Similar behavior has always happened on a connected USB spinning hard drive which would go into sleep mode. But this is an SD card, and my reader has never exhibited this behavior.
  • Sometimes when I am playing an MP3 audio file from the SD card reader, the song will just pause for a second or two during playback.
  • Sometimes when I am watching a video from the SD card reader, the video will pause during playback. Sometimes (but not always) the audio will continue, but then the video will race to catch up. I imagine this is because the data pauses (just like with audio playback) and audio and video are buffered differently.

Again this has worked just fine for years through many Windows 10 updates. But version 2004 screwed up access to my SD card reader. It's like it turned on some sort of sleep functionality that continually appears, even after a few seconds, and even if the drive is being used!


In Device Manager I could find no "sleep" or power management setting for the SDXC card reader.


Some of the USB controllers marked as "USB Mass Storage Device" have a power management setting "Allow the computer to turn off this device to save power", but it is not clear to me which of the two "USB Mass Storage Device", if either, corresponds to my SDXC card.


Note also that in Device Manager my SDXC card under the "Events" tab shows that on the day I upgraded to v2004, the device was "migrated":

  • 8/24/2020 [time]: Device migrated
  • 8/24/2020 [time]: Device configured (disk.inf)
  • 8/24/2020 [time]: Device started (disk)

Why was this SDXC drive "migrated" to begin with, and what does this mean? Maybe I need to reinstall the Dell drivers and override the Microsoft ones?


No, I'm not going to reinstall Windows 10, so don't even think of suggesting that.

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