Here are some free software alternatives to default Windows programs.
VLC MEDIA PLAYER instead of Windows Media Player
FIREFOX BROWSER instead of Microsoft Edge
THUNDERBIRD instead of Microsoft Mail/Outlook
DIGIKAM instead of Microsoft Photos/Windows Photo Viewer
LIBREOFFICE 5 instead of Office 365
7ZIP instead of Winzip
JITSI instead of Skype

Give them a try!

Trisquel is an easy to use fully free operating system without proprietary software or firmware. You can live boot it and check it out without installing
https://trisquel.info

Free your Chromebook by De-Chroming it. Chrome OS is a proprietary operating system that promotes Service as a Software Substitute
https://www.softwarefreedom.org/blog/2014/dec/01/de-chrome-acer-c720/

More on Service as a Software Substitute (SaaSS)
http://www.gnu.org/philosophy/who-does-that-server-really-serve.en.html

Is your computing and the internet private?
http://www.makeuseof.com/tag/avoiding-internet-surveillance-complete-guide/

Libreoffice is a free office suite. It uses the Open Document Format,an international standard.
https://www.libreoffice.org/

DownThemAll! is an advanced download manager built as a Firefox browser plugin. Speed up your downloads without using proprietary programs,right from your browser.
https://addons.mozilla.org/en-US/firefox/addon/downthemall/

Miro Video Converter is a simple free video converter for videos to play on your Android,iPhone or iPad device,or in a free format like Ogg Theora (.ogv)
http://www.mirovideoconverter.com/

WinCDEmu is a simple tool to Mount ISOs on a virtual drive. Use downloaded ISOs without burning to a blank disk.
http://wincdemu.sysprogs.org/

Calibre is a free E-Book management and reading software. It supports the free EPUB format
https://calibre-ebook.com/

The ThinkPenguin Wireless USB adapter for GNU/Linux is a small WiFi adapter that works with any GNU/Linux distribution and runs free software.
https://www.thinkpenguin.com/gnu-linux/penguin-wireless-n-usb-adapter-gnu-linux-tpe-n150usb

Pidgin is a free Chat Client for connecting to all you instant messaging platforms.
https://pidgin.im/

Blender is a free software 3D graphics and animation program.
https://www.blender.org/

Coreboot is a free BIOS replacement installable to flash.
https://www.coreboot.org/

F-Droid is a free software Android Appstore. Not only are all the apps in the store free software,they are also free of charge and free of advertising
https://f-droid.org/

Krita is a free software painting and 2D image editing program.
https://krita.org/

Value your Freedom or you will lose it,teaches history. "Don't bother us with politics," respond those who don't want to learn.
- Richard Mathew Stallman

MPV (stylised mpv) is a free software command line media player
https://mpv.io/

Software is like sex: it's better when it's free.
- Linus Torvalds