Identify an interruption and put it aside for later.
Quick Tip: How to Handle Interruptions
Interruptions abound. Even things that don't seem like interruptions are. When a piece of software asks you if you want to upgrade, don't just blindly do it. You might find yourself struggling for hours to get the upgrade to work the way you want it to. And that report you're working on will suffer. Add "upgrade software" to your task list and go about your business. You'll then be able to handle it in its own time, using your normal system that gives you the chance to do tasks at the best time for them.