That specific error code often pops up when the Media Creation Tool hits a snag with the digital rights validation or the download servers. It's a known hiccup, but the good news is you don't need a Windows 11 PC to get the installation files.
Let's bypass the tool altogether. Instead of using the Media Creation Tool, I'd like you to download the official Windows 11 disk image (ISO file) directly. Just head to the "Download Windows 11 Disk Image (ISO)" section on the Microsoft software download page. Select "Windows 11" from the drop-down menu and download the ISO. This method is much more reliable for scenarios like yours.
Once you have the ISO file, you'll need a separate, free tool to make that ISO bootable on your USB drive. I highly recommend using Rufus. It's a small, trusted utility that handles this job perfectly. Just open Rufus, select your USB drive, choose the Windows 11 ISO you downloaded, and it will create a bootable USB for you without any of the validation headaches.
This two-step process—download the ISO directly, then use Rufus—is the method we often suggest when the Media Creation Tool isn't cooperating. It should get you past that error and on your way to installing your new build.
Give that a try, and I'm confident you'll have your bootable USB in no time.
If this solution works for you, please feel free to hit "Accept Answer" – it's always great to know we could help you get un-stuck 😊.