I have setup 4 user's laptops (Windows 10) on our new Office 365 Business Standard package.
All laptops use the same email address for Microsoft personal & business accounts.
(we get the prompt "Work/School or Personal" when accessing Microsoft online)
According to a Microsoft support person this is what they are encouraging now.
3 setups work perfectly, have both blue & white clouds in the system tray (for business & personal files) with "OneDrive" and "OneDrive - <our domain name>" folders in explorer and c:\users\<username>.
1 laptop is refusing to load OneDrive business.
No blue cloud in system tray.
No "OneDrive - <our domain name>" folder in explorer or c:\users\<username>.