6volts,
I do the following for backup.......
1. USB factory default recovery drive. This is the original Acer OEM factory image. I keep it in a safe place (a labeled envelope in a drawer).
https://www.youtube.com/watch?v=IfKn87nk0F4
2. System image backup (I don't use the fancy one, just the boring, plain system image backup). This is the one you take when your computer is working great and you have it exactly how you want it. 
I save it to an external HDD.
3. On a different partition of my external HDD, I also save a weekly scheduled system image backup. I don't mess with my system image in #2. This is a different system image. Don't try to save it to the same partition as the system image that you saved in #2 above.
http://pureinfotech.com/schedule-windows-81-system-image-backup/
4. I keep my files backed up daily. Most of them are save to the OneDrive or Google Drive or Google Photo (the cloud) and some are saved to an external HDD.
https://www.google.com/drive/download/
https://photos.google.com/apps
5. I also have a vanilla copy of Windows 10 that can not only be used to clean install vanilla Windows 10.....but also has recovery tools (repair tools).
I used the media creation tool to create the USB drive media.
https://www.microsoft.com/en-us/software-download/windows10
That's it. I see people struggle on this forum on a regular basis and spend countless hours troubleshooting. If you use those tips, you'll spend less time troubleshooting and more time doing something else.
You can also use the Alt + F10 method to reset to factory image, but I would never rely on that because sometimes it doesn't work if you've upgraded your PC to a different OS or different Windows 10 version. Many people rely too much on that feature and get themselves in trouble....and they don't want to start completely over from scratch. Some people will spend weeks/months trying to resolve an issue rather than start over.
https://www.youtube.com/watch?v=NuljT0a8F7I