(adsbygoogle = window.adsbygoogle || []).push({}); The basic Xbox one hard drive has 500GB. Xbox also uses up a lot or data. I bought my Xbox 4 days ago and have already used up 30% of the hard drive. If you run out of room in your internal hard drive just buy a 500 GB external USB hard drive. Just make sure you back up all your saved data on the internal hard drive before you hook up the external hard drive or it will wipe your internal hard drive clean!