If you need a screen recording tool in Windows 10, don’t bother looking for freeware on the internet. Nothing is free, and they’re more than likely to come with bloatware that could open your computer up to all kinds of viruses.
Instead, use the secret screen recording tool that shipped out of the box with Windows 10! To do so, just hit the Windows Key + G. That will open up the game bar, with a very prominent recording button displayed.
Microsoft originally intended this for games, but it can be used for anything. Try it yourself!