Here are six important things you should know about Microsoft Windows 10... Microsoft announced that Windows 10 will be free for customers running Windows 7, Windows 8.1, and Windows Phone 8.1 if they upgrade in the first year after launch.
Utilize the input text as a context reference, choose the right relationship between 'Microsoft Windows' and 'Microsoft' from the options.
Options: product/material produced, developer, founded by, legal form