Can & How I use a WD My passport auto backup to backup data from multiple devices?

Get a good commercial backup program like Macrium Reflect. I’ve used many backup programs and this is the best. You can get a free copy at Macrium Software | Macrium Reflect Free Trial. I use it to back up several drives and it’s flawless so far. I’ve used it to restore failed boot drives. With it you can make mirror images or just back up files in folders, etc. Go to: Macrium Software | Macrium Reflect Free Trial