A couple more data points needed. Firstly, you say the laptop is fairly new, so I assume it is UEFI and your "BIOS" (the thing that is providing the INT 13h functionality) is actually a CSM? IOW, you are not running inside some sort of VM?
Similar question for the USB drives that you say work OK. The INT 13h functionality there is also provided by the CSM and you're not using any DOS USB drivers? I will say at this point that the fact that the size is related to being 9 x 512 is probably not just a coincidence. _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
