How to remove Windows 10 upgrade prompt
Arthur C Clark referred to Microsoft Windows as the most publicly endorsed (he called it legalised) virus on the planet. Hal, in 2001 the Space Odyssey, offered the line "I have taken the liberty of removing Windows from my system, and can now talk freely".
Saying that, Windows 10 can be disabled by installing specific scripts available for download from hack sites. Groupsupport staff have scripts and routines designed to complete the removal of the prompts without the risk of trojan- / mal- ware from external sites.