https://devzone.nordicsemi.com/f/nordic-q-a/72640/issue-with-fatfs-interaction-with-windows-usbI am using the nRF52840 (with SDKv17.0.0 + s140_7.0.1) and have an issue when I create a file using FATFS (when disconnected from the PC) and afterwards copy it via USB (Windows 10), I get STA_NOINIT on the next attempt to call disk_initialize() whenen-USTelligent Community 13Thu, 11 Mar 2021 12:31:29 GMThttps://devzone.nordicsemi.com/thread/299244?ContentTypeID=1Thu, 11 Mar 2021 12:31:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1d2264eb-2155-4b9b-8363-6265aa66caeaKenneth[quote userid="15022" url="~/f/nordic-q-a/72640/issue-with-fatfs-interaction-with-windows-usb"]The solution also works for me, but he was using SDK15 and I&#39;m using SDK17.[/quote] <p>Please use the same fix, I am not sure why this&nbsp;issue&nbsp;have not been handled in the SDK. I will ping the team again.</p> <p>Kenneth</p><div style="clear:both;"></div>