Troubleshooting NEED HELP Kindle Being Recognised As Device Not USB. Interfering with process

I recently got a Kindle KT6 to replace my broken Kobo Nia and have been trying to jailbreak it my new Kindle. I am trying to use https://github.com/bastianmarin/Kindle-Filler-Disk/ to make sure it wont update when connected to the internet but the kindle is being recognised as a device not a usb drive. This is causing me problems and not letting me fill the storage and go through with the jailbreak process. Powershell is giving me this error when tying to run the script: New-Item : Access to the path 'fill_disk' is denied.
At C:\Users\CENSORED FOR OBVIOUS REASONS\AppData\Local\Microsoft\Windows\INetCache\ IE\50PX25V9\Filler[1].ps1:11 char:30
+ ... t (Test-Path $dir)) { New-Item -ItemType Directory -Path $dir | Out-N ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : PermissionDenied: (C:\WINDOWS\System32\fill_disk:String) [New-Item], UnauthorizedAccessE
xception
+ FullyQualifiedErrorId : CreateDirectoryUnauthorizedAccessError,Microsoft.P owerShell.Commands.NewItemCommand
PLEASE HELP :help::help:
Thanks