https://wccftech.com/cost-of-not-leaving-windows-7-millions-of-taxpayer-dollars/

Microsoft stopped supporting Windows 7 earlier this month sending the last updates to this decade-old operating system on January 14th. The end of support deadline was known for years with Microsoft sending reminders every now and then. Last year, the company also revealed its plan to offer quite a heavily-priced extended security updates (ESU) program for businesses that couldn't migrate their Windows 7 machines to Windows 10 in time.

Now that the extended support program has gone live, it appears governments are having to dump millions of dollars on keeping this now-outdated OS and the associated devices secure.