There are a number of free video editors out there. Don’t willy-nilly go searching Google for them. You will end up in the deepest rat-whole at best and you computer getting infected at worst.

Here are a some vetted editors for you..

1. Microsoft Photos is a very simple application that is mostly used to manage photos but is can create some simple video slide-shows from your pictures. You probably already have it on your Windows 10 PC.
2. Easy Movies Maker is a very light-weight editor that can easily be downloaded from the Microsoft Store. Easy Movie Maker has an unconventional project based interface that some non-experienced users may like.
3. A simple opensource solution is OpenShot which has a very easy conventional user interface.
4. Lightworks video editor has been from a long time in the video editing industry and used in many films as website claims such as The Wall Street, LA Confidential, Pulp Fiction, Heat, Road to Perdition, Hugo and The King’s Speech.  For the advanced armature and the pros only.