Microsoft has basically taken almost all businesses in the world hostage.
Once your staff is trained on MS products and your own stuff is fully connected to Azure, you're trapped and they can adjust prices to just below what you can bear.
Microsoft doesn't need a monopoly in the dying consumer desktop market anymore. That's why they're the top contributor to the Linux kernel, integrated a Linux layer into their OS, offer to save documents in an open format in Office, and host articles on how to install Linux in their documentation.
The year of the Linux desktop has finally come. Everyone who doesn't still run Windows 7, now has a Unix system installed on their PCs (and all other devices). It's just one that's distributed by Google, Microsoft or Apple.