You’ll find that exciting solution on page 2 of this thread, from years ago.
It is hardly unique to SanDisk.
If you have connection troubles with any device connecting to Windows–camera, scanner, printer, phone, galactic death ray–it’s always good to try going into Device Manager, uninstalling the driver and reconnecting the device. It finds a nice shiny new driver either in Windows or online. If that doesn’t work, then the problem is elsewhere: with the cord, the USB port or the device.
The good thing about SanDisk players is they don’t have special proprietary drivers that you’d have to get from SanDisk. Instead, they use drivers that have been built into Windows for at least a decade–the standard USB driver (MSC) or the MTP driver that has been in Windows Media Player since WMP 10 was introduced in 2004.
