Unfortunately, it may be.
There is a setting that we have enabled by default that may be causing this behavior. Specifically, the BitLocker setting.
This setting queries the system for data, which creates a WMI query, which causes disk activity.
That said, you can disable this:
http://wiki.covecube.com/StableBit_CloudDrive_Advanced_Settings
And the setting is "BitLocker_CloudPartUnlockDetect", which is actually used in the example. Set the "override" value to "false", save the file and reboot the system. That should fix the issue, hopefully.