If it's been a while since you've used either SCT's Device Updater or hooked your device to your PC, you'd likely need to download the latest SCT Device Updated Version and drivers and from SCT in order for your device to function properly with Windows 10. The device is capable of holding 10 tunes, though 5-Star only offer's up to 5 as standard for their X4s. Additional tunes can be added if need be, though most folks have a hard enough time choosing three, and since tunes can only be used with specific octanes, it's not exactly easy to run through 10 tunes. Still, it can be done if you give us a call directly at 1-877-578-2433. The tuning capabilities and overall functionality of the menus between the X4 and Livewire are basically the same, and the X4 would probably be your better bet if you're not interested in monitoring your truck.