Re: They're not helping themselves here.
"You say you have 3 home PCs running windows 10 and I'm glad that they're running well, but that's 15GB worth of downloads that happened and to many, they happened without their knowledge and without any meaningful approval."
Nah, just 5GB. Download it once and install it to a USB stick. Voila, you can install on as many (or as few) machines as you wish while only downloading it once.