If nothing shows up in the device manager, the chip is probably not in bootloader mode. If you're jumping to the bootloader, ensure you haven't disabled interrupts.
DfuSe is NRND status (deprecated). You might have more luck with STM32CubeProgrammer. Choose the "USB" protocol to connect.
> the notes said Win10 didn't need the STM Bootloader and it's not supported
What notes?
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