BSOD when removing external drive


  1. scopio
    Posts : 495
    Windows 10 Home 64bit 22H2 OS 19045.3324
       New #1

    BSOD when removing external drive


    I have update Windows 10 Home and created a backup with Macrium but when removing my Maxtor external drive by clicking on the hidden icons to safely remove the external drive I get a BSOD with APC Index Mismatch!
    I have run sfc /scannow which found some corrupted files which it corrected I then tried to remove the external drive again by removing it safely I get the BSOD again every time. I do not get the BSOD when I plug and unplug a flash drive.
    Device Manager does not show any problems with the external drive.
    Attachment 301868

    Any help much appreciated.
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  3. MrPepka
    Posts : 1,538
    Windows 8.1 Enterprise x64
       New #2

    Update BIOS - M4A79T Deluxe Driver & Tools | Płyty głowne | ASUS Polska
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  4. Bree
    Posts : 31,682
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       New #3

    scopio said:
    I have update Windows 10 Home and created a backup with Macrium but when removing my Maxtor external drive by clicking on the hidden icons to safely remove the external drive I get a BSOD with APC Index Mismatch!

    That was a bug in Macrium Reflect v7.3.5281. There is now a patch to v7.3.5283 to fix this.

    Bug fixes and Improvements v7.3.5283 - 15th October 2020

    • Changed Block Tracker
       When removing a USB attached storage device, an APC_INDEX_MISMATCH BSoD could be generated if there was an outstanding kernel lock on the device. This has been resolved.
    New Macrium Reflect Updates [2]
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  6. scopio
    Posts : 495
    Windows 10 Home 64bit 22H2 OS 19045.3324
    Thread Starter
       New #4

    Thanks @Bree today I had a Macrium update again as your post indicates and has resolved the issue.
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