Microsoft is offering Windows 10 as a free upgrade to all Windows 7 users, but that doesn’t necessarily mean that you have to upgrade, if you don’t want to.
Microsoft will continue to support Windows 7 until the end of its life cycle in 2020. This means that you’ll carry on receiving the essential security patches and updates needed to stay safe until then.
That said, Windows 10 brings about some new features and performance improvements that may make it appealing to users of Windows 7.
Free upgrade until July 2016
If you're interested in the upgrade, first check that your PC meets the Windows 10 system requirements. This shouldn't be any issue if you're seeing the 'upgrade' icon in the corner of your screen already.
Windows 10 will only remain a free upgrade until July 29 2016. After that, you'll have to pay to install it. If you take the free upgrade before then, it will remain free forever, and you won't be hit with an unexpected charge.
...or stick to what you know
Windows 10 is a good successor to Windows 7, but if you’re happy with what you’re using, then don’t feel pressured into upgrading for the sake of it. If you’re content with your PC, why change?
One important reason to potentially stick with Windows 7 is device and program compatibility. If you have an older printer, it may not receive drivers to enable it to run on Windows 10. If you use a bespoke piece of software you couldn't live without, check if it's Windows 10-compatible before upgrading.