Refer: http://lifehacker.com/how-to-completely-uninstall-onedrive-in-windows-10-1725363532
To completely uninstall OneDrive:
Open Command Prompt in Administrator mode: Right-click on the Windows icon in the taskbar and select Command Prompt (Admin).
Type in taskkill /f /im OneDrive.exe to terminate any OneDrive processes and hit Enter.
64-Bit Installation
C:> %SystemRoot%\SysWOW64\OneDriveSetup.exe /uninstall
32-Bit Installation
C:> %SystemRoot%\System32\OneDriveSetup.exe /uninstall