The reality is that Windows 7 is going away January 14, 2020. That’s when Microsoft will end its extended support commitment to Windows 7 leaving computers still using it vulnerable.
So the next question is: Why switch now? Simple it’s free. Microsoft is giving consumers the opportunity to make the switch without cost to the consumer and by doing a simple upgrade rather than a completely new installation. After July 29, 2016 it will cost consumers to upgrade to Windows 10 between $120.00 and $200.00 depending on the edition they choose.
The good news is that Windows 10 has brought back the start menu. The look is slightly different but still has a familiar feel with simplified icons that are easily recognizable.
If you are moving on to a new PC what better time to start out with Windows 10 especially since new PCs will only be able to have Windows 7 on them through October of 2016. As I said Windows 7 is going away.
You can have the best of both worlds by upgrading to Windows 10 and then switching back to Windows 7; since you have officially upgraded to Windows 10 before July 29, 2016 you can keep using your current system until January of 2020 and then switch back to Windows 10 when it becomes necessary but without cost to you.
In the end you will have to evaluate what will work best for your computer needs.