Guys, this is probably old news, but I just learned how to totally disable OneDrive on Windows 10. Seems to work on Windows 8.1 as well.

When I say completely disable, I mean it isn't in the systray, isn't in the tree view in Explorer, and completely just ceases to exist, so to speak. 

Finally....hehe.   So, in case you want to do the same, I thought I'd share the info I found. Also, some links below because  I don't think the Home versions of 8 and 10 have group policy editor.

It's really easy too.  Firstly, right click the systray icon, settings, unlink OneDrive on this PC. Also untick the box to start OneDrive with Windows.

Just type Group Policy Editor in search. Or, if you have made the God Mode shortcut, use it.

Once in GPE, click on "Computer Configuration".

Then "Administrative Templates".

Then "Windows Components".

Scroll down to OneDrive, double click it, and you'll see "Prevent the usage of OneDrive for file storage.".

Double click that, and tick the "Enabled" box.

Right click the systray icon, exit.

Reboot. When you get booted back up, OneDrive will not be in the systray. It will still be in the tree view in Explorer, but you can click on it there, and it goes away.

Then, you can feel free to delete the folder you were using for OneDrive.

 http://www.howtogeek.com/225973/how-to-disable-onedrive-and-remove-it-from-file-explorer-on-windows-10/

 https://techjourney.net/disable-or-uninstall-onedrive-completely-in-windows-10/