Hi MiLa09~,
I'm Rodrigo and I will help you.
None of these options affect the files inside of a USB drive. "Uninstall device" delete the driver for its drive, but it will try to reinstall the driver after restarting te computer or replugging the drive. (this can be used to fix driver problems)
The "Disable device" option disables the device, making it inaccessible, after disabling it, in Device Manager, it will show a down arrow on the icon meaning that the device is disabled, you can right-click it and select "enable device" to re-enable the device and access it.
Using these options will not delete the data on the drive.