I have Carbonite on my old DELL.
Is my DELL locked up and frozen? Did streamed radio stop? It did? Call up the Task Manager (Ctrl + alt + del on my keyboard) and check the "processes".
Sure enough, there's Carbonite leading the way: 99% CPU strength.
This is what they mean about it "working in the background"?
It routinely overwhelms my computer, and another favorite trick? If I try to kill it with the task manager, it will go MAX / min / MAX / min on the "Usage" graph: repeated failed attempts to restart itself, at which time it sucks out your CPU's will to live, or at least function.
Clicking on Carbonites "desktop icon" is worthless, as is TRYING to click on the icon at the bottom of the screen: whatever defective process is going on is killing your CPU.
Oh, Carbonite has acknowledged its CPU-killing penchant by now adding a "Pause" feature.
Now WHY, o why, would I want to, or even NEED to, "pause" something that's "Working quietly in the background?"
ANSWER: Because it may be "quiet" and it may be "in the background", but what's in the foreground is frozen / choking / puking / gagging.
Most of the time, when you DO want to pause it, it's too late: it's already got your computer locked up or gagging, and all you'll do is get hour-glassed, or the icon in the tray likes o disappear.
I do home-office and I had to download an online backup solution to protect. Just make sure you choose the right one, just because you have paid for the service and gotten confirmation of that payment don't assume your files are being backed up.