Backingup data

[z10566sa]

What is a good/best way to save data

1. Use external HDD via USB with file backup software
2. Drag and drop files or folders to external HDD on USB
3 Drag and drop files or folders to thumb drive on USB
4. RAID-XX with 2 or more HDD

 

[Trouble]

1. Use external HDD via USB with file backup software
2. Drag and drop files or folders to external HDD on USB
3 Drag and drop files or folders to thumb drive on USB

Probably even in that order......
You've answered your own question.
As far as "backup software" personally I prefer software that supports disk imaging.
https://www.windows10forums.com/threads/please-for-your-own-peace-of-mind.794/
And always use Acronis for my backup needs although others seem to like Macrium Reflect and they do offer a free version.