Hi everyone, I need some help and advice regarding OS backups and images, but please (ELI5) explain like I'm 5yo as my knowledge is very poor on this subject. I'm a little embarrassed to say that after more than 2 decades of being a techy PC nerd/enthusiast, I've never actually done any OS backups, imaging, or even learned much about it.
- Is restoring from a backup image the same as doing a completely fresh install, effectively a total wipe of the broken/corrupt OS and a new fresh OS is installed, all issues are gone for good? Or is it more of patching over the cracks, the broken/corrupt OS files are still there but covered up with the restored OS? Is there any performance penalty; like the old broken OS is still technically there and the restore has been pasted over it so the system might lose a bit of performance?
- To create a full comprehensive system backup/image, is Windows built-in thingy good enough or should I really be using a third-party app, free or paid, if I want it done properly?
- Do backups/images always work? - If my OS gets completely Fubar'ed, will a restore definitely fix the corrupt/missing OS files, or does a backup sometimes not resolve the issues if it's serious, so a format and fresh install are required?
- I currently have my OS drive with drivers and frequently used apps, but all games, personal files, media, some other apps, and everything else on separate drives. If I have to restore the OS from a backup, would I have to redownload and reinstall everything on the non-OS drives like it was a fresh install?
- What are the best practises for OS backups and images, anything I should know at all, advice from experiences on things to watch out for?