Open "mangapanda-downloader.ps1" using notepad / text editor.
Edit _$manganame variable, for example "naruto" manga:
$manga_name = 'naruto'
$chapter_start = 1
$chapter_end = 700
$local_drive = 'd:\Manga'
Open Windows PowerShell command prompt
Run the script:
.\mangapanda-downloader.ps1
All files will be saved to "d:\naruto"