OneDrive for Business High CPU

Had an issue where OneDrive for Business (installed with Office 365) was constantly using one CPU core. None if the fixes involving the cache or resetting the client worked. The problem seems to have started with recent (possibly after Office 365 1712 8827.2148) updates. What did work was the solution in this thread:

Condensed version: Stop using the old client (groove.exe) and use the personal client instead, which now seems to work (at least, the latest Windows 10 version) with business accounts as well.

(Note that this doesn’t apply to connections to onsite hosted sharepoint drives – there is apparently a fix coming sometime.)

The sequence is:

  1. Stop the OneDrive for Business client (right-click the system tray icon and choose exit, or kill it otherwise).
  2. Disable it from starting (use msconfig as an easy way to do this).
  3. Remove the existing OneDrive for Business folders (move them to a backup location)
  4. Open the personal OneDrive settings.
  5. Add an account and connect to the business account.


Published by

Jamie Scott

IT Administrator at the Institute for Gravitational Research, University of Glasgow