I'd suggest you make a separate partition for system recovery
and a separate partition for her personal data
Once you're completely set up, create a disk image of your system drive and store it on the recovery partition. That way, if she ever roaches
her OS, she can quickly recover it by writing back the image. You'd still need to reinstall some apps and updates. But that's still a much better way than to go hunting down drivers plus
downloading ALL the initial OS updates a second time.
If you move all her personal stuff over to a separate partition, it makes her data backups a complete no-brainer. No need to fiddle with folder or subfolder selections. Just backup or sync the entire
partition to an external drive (or cloud service) and be done with it. iDrive
works well for web-based backups. It's very secure, fast, and reliable. Also cheap if you need more than the free 2Gb space they'll give you just for signing up. I recently began using iDrive as a secondary backup for all my personal machines. I picked it after testing several competing products. Highly recommended
. (Disclaimer: I'm not affiliated with iDrive. However, this is one product I actually might consider getting involved with for my business clients.)
, system recovery
, and user data
partitions it's up to you how complex you want to get.
Like f0dder, I'd suggest the fewer partitions the better. Especially if it's your sister's machine and she's not geeky like us.