You should use the diagnostic tool only to troubleshoot a console that’s having trouble downloading a system update from Xbox Live. Try all other troubleshooting steps first. The diagnostic tool file is a very large file and will take considerable time to complete.
To use the Offline System Update Diagnostic Tool, you’ll need:
- A Windows-based PC with an Internet connection and a USB port.
- A USB flash drive with a minimum 2 GB of space formatted as NTFS.
Important
This process is designed for troubleshooting use only. If you're updating your system for the first time, you'll still need to connect to the Xbox Live service.
Read these instructions thoroughly before installing the update
