The Xbox Game Bar, included within Windows 10, can be used to record your screen. You can check whether it is enabled within your Settings menu by navigating to Settings > Gaming.

Once enabled, the Xbox Game Bar can be turned on using the WIN+G keyboard shortcut.

If you need to find or change the folder location where recordings are saved to, return to the Gaming Settings menu.  On the left-side column, you'll find either "Captures" or Game DVR.  Click that heading to find the recording options.  At the top, you can "Open Folder" or save to a different folder.