Windows 10: Pc can’t read CFExpress cards

Recently my pc, windows 10, does not recognize my CFExpress memory card. I have tried two different C Fx cards with the same result, I also tried 2 different readers with same result. I did the same procedure with my other pc, same result. Help

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CFexpress Type B Card Readers not recognized on Windows 10 PC

Sometime in the last month, my Windows 10 PC has changed. I didn't install any new programs. When I insert my Sony MRW-G1 CFexpress Type B Card Reader, the drive letter isn't displayed on Windows explorer, so I can no longer access the card. I also have a ProGrade Digital CFexpress Type B and UHS-II SDXC Dual-Slot USB 3.1 Card Reader. The SD Card slot does appear on explorer, but not the CFexpress Card slot. Both of the card readers do work on a different windows 10 PC that I own. Looking at the drivers that the PCs use, the versions of the drivers are different. Both PCs have current Windows 10 updates installed. I contacted Sony and they suggested I call MS. I called MS and an agent took control of my PC and rebooted my PC, after which I could no longer see what was going on. Several hours later, I was able to log into my PC, but it still doesn't work. I have googled for hours and can't find drivers, or a resolution to the issue, but see a number of other people having a similar issue. Has anyone found a resolution for this issue?

Update - the drivers that are used on the bad PC were updated on 10/29 (disk.sys, EhStorClass.sys, partmgr.sys) along with a lot of other drivers. I checked windows update history and there was one windows update run on 10/29 -

2023-10 Cumulative Update Preview for Windows 10 Version 22H2 for x64-based Systems (KB5031445)

On the good PC, those files are older versions and that update was never applied. I tried uninstalling it, but the option wasn't available. So, I have no options at this point.

<Changed to a question>

 

ProGrade Digital Shows Off 1TB CFexpress 1.0 Card Exceeding 1400 MB/s Read Speed

ProGrade Digital, founded with a mission to provide the highest quality professional grade digital memory cards and workflow solutions, has become the first company to publicly demonstrate the CFexpress 1.0 technology with 1TB of capacity. Debut of this important next generation digital memory card form factor, presented by CEO Wes Brewer and VP of Marketing Mark Lewis at NAB in Las Vegas, provides solid proof that the industry is moving toward productization of this new standard.

"The CFexpress standard has been evolving for several years within the CompactFlash Association as a successor to both CFast and XQD formats. We are pleased to be working within the CFA and aside device manufacturers to bring to market this next generation removable storage standard," said Brewer. "Industry adoption of CFexpress will allow for much higher resolution and higher bit rate image capture than ever before in many still image and video capture devices. Faster offload speeds will also greatly benefit the post-capture workflow through the extremely high read speeds it provides. With our demonstration today, we've also been able to show compatibility for the CFexpress Type B form factor with XQD memory cards-showing operation of both card standards in a common Thunderbolt 3 reader."




ProGrade Digital demonstrated performance benchmark speeds exceeding 1,400MB/second and burst write speeds of greater than 1,000MB/second-nearly three times faster than CFast memory cards and more than four times those for SDXC UHS-II.

CFexpress 1.0 Demonstrated Technology Key Features:

• Industry-leading speeds
• Greater than 1,400MB/second read
• Greater than 1,000MB/second burst write
• CFexpress Type B format factor with two lanes of PCIe and NVM Express support
• XQD form factor interoperability
• Dimensions: 29.6 mm x 38.5 mm x 3.8 mm

 

Cant read the SD card

Hello,

Oftentimes, a corrupted device can result to issues in reading your SD card. For us to isolate the case further and determine the appropriate resolution, provide answers to the following questions:

• Have you checked if other external devices/accessories are properly detected on your device?
  
• Can you confirm if the SD card is being detected on another device aside from the one that you're using?
• What procedures have you taken so far?

As an initial troubleshooting, we suggest that you run the Hardware and Devices Troubleshooter by following these steps:

• Press Windows key + W and type Troubleshooting.
• Choose Troubleshooting.
• Click on View All option on the left pane.
• Click on Hardware and Devices and follow the prompt to run the troubleshooter.

This tool checks the hardware connected to your computer for common issues and gives details on how to rectify them. If there are any suggestions given by the troubleshooter, you may try those and check if it helps.

We will wait for your response so we can help you further with this issue.