I know this isn't help or support but i just thought to share something i have found out a while ago. Try to make a folder name 'CON'
A pop-up forces you to change the name by saying "the specified device name is invalid."
Also, open up Microsoft Office Word (any version) and type this in: =rand (200, 99) and press Enter.
It makes a 392 page list of copied and pasted paragraphs
(Please Move this if in the wrong section)