system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does Microsoft want me to upgrade to Windows 10?
gpt
The sooner Microsoft gets everyone moved over to Windows 10, the sooner they'll have a single platform to support, meaning they don't have to support previous versions anymore, making their development easier.

Plus it's their shiny new baby and they think it'll be a better experience for their users.