Do not change behavior without notification
Do not change the existing behavior without notification to the user. Especially fundamental behavior.
I have a travel laptop and a desktop. I have close to 800mb of data I actively use on OneDrive. I expected that when I booted and started the laptop, and logged in for the first time in a year that after all the patches and rebooting, it would sync my files. I left a about a week later after the last reboot, expecting the sync to happen automatically like it always has before.
I go abroad, and every file is marked with a stupid blue icon shaped like a cloud. Do some Google searches on my 2g cell phone data plan, and find out the meaning. WTF? I am stuck abroad for almost a month without anything I planned on bringing with? And there is no way I am paying or waiting however long to download 800mb over 2g cell circuits.
I did the basic verification before I left. Opened a few files, but they were small and I have a 1GB Fios connection, so I did not notice they were in the cloud.
I admit, this is a cool feature, however, the lack of notification about such a major change really f**** up my day.