First off, you do what works for you! But I'll try to explain below why you'll want to change things a little.
The small adjustments I would suggest is to put those all in a master folder called BU (for
back up) and (a short and unique computer name) on the NAS. Do
not make the overall folder structure the same as what your current computer has (drive-wise). Rather, use what Windows uses (go with the flow!).
Code:
BU
Asus
VivoBook
Desktop
Downloads
Documents
Music
Pictures
Videos
I used to fight the way Windows structures things. Now, I work with the defaults. Makes setting up a new computer very fast and requires no overthinking (where mistakes can be made).
I suggest to use
FreeFileSync and do your backup daily, weekly, or ad-hoc, and manually, as fits your needs, depending on how often your important data changes.
You would use that utility above and
map your 'top' main folders from the three drives to the folders on the NAS.
My example below is for an Asus VivoBook with the NAS 'BU' as a top folder.
With Asus as the computer brand and VivoBook as the (assumed) current model.
Code:
Left-hand pane in FreeFileSync Right-hand pane in FreeFileSync
on the NAS on the Computer
\BU\Asus\VivoBook\Desktop E:\Desktop
\BU\Asus\VivoBook\Downloads E:\Downloads
\BU\Asus\VivoBook\Documents E:\Documents
\BU\Asus\VivoBook\Music F:\Music
\BU\Asus\VivoBook\Pictures F:\Pictures
\BU\Asus\VivoBook\Videos D:\Videos
The reason I organize like this is that some/most of the files created and contained herein are usually related to the
hardware they were created on.
So to organize by the computer is to self-document this implicitly and without wordy explanations or needing to rely on memory what results were from which hardware. But I do keep a text file of the specific hardware for each computer on a desktop 'HW' (hardware) folder, including the date that any hardware may have been changed or upgraded on.
For a more complete picture of how this works for me fully, please keep reading.
I use OneDrive, Dropbox, and pCloud with access to some other Cloud backup services too. Along with Office 365 (now Microsoft 365), the Desktop, Documents, and Pictures folders are constantly synced to OneDrive (1TB) and with any other computer too that I am currently using as soon as I connect to the 'net.
So for the backups, the Desktop, Documents, and Pictures folders on each computer
always point to the
same Desktop, Documents, and Pictures folders on the NAS within 'BU'. These folders collectively I call the 'current folders' and contain
all the documents I need to do any work I'm currently active on from any computer I choose to use. These are backed up daily or more even more frequently using FreeFileSync.
The remaining folders are backup up as needed when their data changes. For example, when I move non-current folders and completed files from the Desktop, Documents, and Pictures folders to an '\BU\A' (archive) folder on the NAS.
I hope I have explained this as effectively and succinctly as possible?