Make sure you're using a data-capable USB cable. A surprising number of USB cables are designed to only handle power and not data.
To return your Circuit Playground Express to its original state:
- Download this uf2 file
- Put your board into boot mode by double-clicking the RESET button
- Copy the uf2 file onto the CPLAYBOOT drive
If you’ve already installed CircuitPython, boot mode can be accessed by double-clicking the reset button.
If CircuitPython has not been installed and pressing the reset button once does not cause CPLAYBOOT to appear, try using a different USB cable or USB port on your computer.
For Windows 7 and 8, you need a Windows Driver for the operating system to see the Circuit Playground Express. See the Install Drivers (Windows) page on how to do that. NOTE: Windows 10 does not need these drivers (it's built into Windows 10) so do not install the driver package as it most likely will interfere with the built-in drivers and make the board not show up.
You will need to uninstall the driver package to have Windows 10 use the built-in drivers.
No, Windows XP reached end of life long ago. Please use a newer version of Windows. Adafruit suggests Windows 10, if possible, but Windows 7 and 8 work with an installed driver. Windows 10 has that driver built-in so no additional software is required.