How to Sync Multiple OneDrive Accounts in Windows

Information
Quite a few of us Windows users have multiple Microsoft email accounts, each of them today with OneDrive. I am for sure not the only user who subscribes
Office 365 Home to get 5 Office licenses just for my personal use, each of them with
1 TB OneDrive storage, especially when the O365 Home costs only about a third more than O365 Personal with only one license.
Today we can get huge hard disks with quite a little of money. Wouldn't it be nice if I could sign in to Windows 10 with my primary MS account and sync it's OneDrive content to my desktop but also be able to sync the OneDrive from my additional MS accounts to the same folder?
By default OneDrive only syncs the account it was set up with, you cannot have two OneDrives synced to same folder. Luckily there is a really easy solution for this: You can always share your OneDrive with yourself!
This tutorial will show you how to do that, how to get all content you want to be synced from all your OneDrive accounts stored in the same OneDrive folder on your hard disk. The video below will show you the whole process described in this tutorial.
Video: How to sync multiple OneDrive accounts:
(Video from Solved Windows 10 instructional videos by Ten Forums members - Windows 10 Forums)
Part One: Share the content of your additional OneDrive
1.1) The starting situation: I want to use my primary MS account and its OneDrive (#1) to access my secondary MS / OneDrive account (#2), syncing the content of both OneDrives to same OneDrive folder in my Windows desktop:
1.2) First I need to sign in to the secondary OneDrive using my secondary MS account credentials
1.3) When signed in, I move all the content to a new folder I name
Shared. To do this, I need to select every folder and file (CTRL + A selects all) and click
Move to link in Menu bar:
1.4) I select
New folder, name it and click
Create:
1.5) Finally I select the new folder and click
Move:
1.6) The content is now moved and the root of this secondary OneDrive only contains one item, the newly created folder. I select it and click
Share:
1.7) I enter the email address of my primary MS account and click
Share:
Sharing done, I need now to add the shared folder to my primary OneDrive
Part Two: Add the shared folder to your primary OneDrive
2.1) My primary MS account has now received an automated message telling about the share. The email has a link to open the shared folder:
2.2) I click
Add to my OneDrive and confirm it by clicking
Add folder in following dialog:
2.3) The folder will be added to my primary OneDrive:
Part Three: Select the content you want to sync to desktop
Part Four: Work with multiple OneDrives
4.1) The shared folder from my secondary OneDrive is now synced to my desktop, along with my primary OneDrive content. A "Shared" symbol will clearly show this folder is shared:
4.2) When saving from any application, I can now select to save to the secondary OneDrive by selecting the shared folder in
Save As dialog:
4.3) Remember these basic rules when saving from any application or moving / copying files to the shared folder inside your primary OneDrive folder, or deleting anything from said folder:
- When you save to the shared folder of your secondary OneDrive, the file size will be reduced from the secondary OneDrive's storage quota because the files and folders will be added to that OneDrive's cloud storage, The storage quota of your primary OneDrive remains unchanged
- When you delete anything in the shared folder of your secondary OneDrive, the storage quota of the secondary OneDrive increases because the deleted files and folders will also be deleted from that OneDrive's cloud storage. The storage quota of your primary OneDrive remains unchanged
- When you save to the shared synced folder of your secondary OneDrive, the saved content will be synced both with the OneDrive the content belongs to (secondary OD), and the OneDrive this content is shared with (primary OD)
That's about it! Happy Computing :)
Kari