I'm trying to download Flash Player onto my laptop to run files I saved outside of the browser, but the Installer doensn't work. Every time I try to download I think it ends up deleting itself? Basically after running the installer I don't have the application. I have Windows 10. Thanks.
Flash Player is not an application, so you will not see any app after installing.
Also... I have no real idea what you mean by "files I saved outside the browser". Flash Player is only a browser plug-in. If you've saved SWF files they will be no use to you unless you open them with a brower (until Flash Player is turned off, soon).