The speed of sdxc(sd reader) is very slow.

Discussion in 'Windows Virtual Machine' started by binm, Jan 1, 2024.

  1. binm

    binm Bit poster

    I am using MacBook M1 Max version. Under Mac, the speed of sd card (sdxc) can reach more than 70MB/s for both reading and writing. However, in the Windows 11 virtual machine, the sd card is recognized as a portable device instead of a disk, and the speed can only reach 6-10MB, which is much slower. What could be the reason? Is there any solution?

    Here are screenshots of the smart card reader recognized in Windows and the speed test.
    sb1.png sb2.png sb3.png sb4.png
  2. binm

    binm Bit poster

    other also do?
  3. binm

    binm Bit poster

    Nobody cares about that?
  4. Nischay Gaya

    Nischay Gaya Staff Member

    Hello @binm,

    Thank you for reaching out and apologise for the inconvenience.

    we would suggest to re-install the Parallels tools manually by following steps:

    1. Start your virtual machine
    2. In the Mac Top menu, click on Actions > Reinstall Parallels Tools.

    You may refer to this Knowledge Base for further guidance:

    If the issue persists, For further analysis, please perform the following steps:
    1. Reproduce the issue.
    2. Collect a technical report (click the Parallels icon on top of the mac menu bar > Help > Send technical data > check "Attach screenshots..." > press Send Report) and send the report's 9- ID in a reply to this message.


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