I've been upgrading my computers for the last two weeks, and I've already at 10 devices connected to my Microsoft Account (remember, phones running Windows 10 also count, and I'm sure the Xbox will too). Easy peazy! Now I actually have to choose? WHY?! The placeholders gave me the illusion of having all files available everytime, and as long as I was connected to the web (and that's pretty close to "always") I could just navigate to it via the File Explorer and download it. Windows 10 brings some massive improvements, but as they have a vision of "Windows Everywhere" they have taken some weird choises. I am so indebted to this rather anonymous author - makes OneDrive much more usable for my purposes! You data appears as a directory within C:\Data\OneDrive, and is synced to the cloud, but it actually resides on D: so no space is wasted on C: MKLINK /J C:\Data\OneDrive\BigData D:\BigData
So, say for instance that you have OneDrive mapped to C:\Data\OneDrive, and you have a secondary disk with some big data in D:\BigData. Just create an NTFS reparse point within your OneDrive folder, to your secondary drive. It probably works equally well with DropBox, GDrive etc. WIth some lines in the COmmand prompt, you can tell OneDrive to sync any folder you like without actually relocating it within the ONeDrive folder. Just searching around the other night I actually found an awesome solution. Also, I do want to sync my music folder to oneDrive, but I don't want to relocate my music folder directly within the OneDrive folder. or if I keep OneDrive folder on the C Drive, there's lots of stuff on the extra drive I want synced to OneDrive. I relocated OneDrive to the extra drive, but there's still stuff on the C:/ drive I might want synced to OneDrive. The main OS drive is a smaller SSD, then there's the spinning platter for all the media and work files and such.