How do I ensure a full backup prior to installation

I want to do a full backup of my drive "C" in the event I have to recover. I'm running Windows 7 Home now. I have a number of apps on it from both Microsoft and Adobe, and I can't afford to loose them if the upgrade to Windows 10 goes bad. Are these the correct steps:

• Create a system image
• Create a system repair disk
• Copy all data file I can find from other hard disks (drives D, E, etc.)

Is this all I need to do to have a high level of confidence in the update?

Thanks,
Bob

This is exactly what I have done. Yes, I would say your list is complete.

If you want to be really, really sure, you might want to try playing your backup back on a different machine so that you know, that it is really working. I have not done that before my upgrade.

Thanks, Joergi !!