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Time Machine makes it easy, but you can use whatever backup method you’d like.This is going to involve removing some system configuration files, therefore you should backup your Mac first, just in case.Some Mac users are reporting wi-fi difficulties after updating to mac OS Sierra 10.12.The most common wireless networking problems seem to be either randomly dropping wi-fi connections after updating to mac OS Sierra, or an unusually slow or delayed wi-fi experience after updating a Mac to Sierra 10.12.Special Announcements Four days of learning, networking, friendship-making and BEACH-GOING. If you need Mac-specific help, you'll find some here, but more at The Office For Mac Help site.We're talking about the 2017 Presentation Summit, September 24 to 27 in Clearwater Beach, Florida. If your question isn't answered here, post it on Microsoft Answers: The Power Point Support Forum (and the former Power Point newsgroup, etc.) Thanks to everyone on the newsgroups for asking such interesting and challenging questions, and a very special thanks to the Power Point MVPs and the Oughta Be MVPs who've contributed so much to this site and to the larger Power Point community.Better yet, if you're one of the first 100 to register for the conference, you'll get a free year's membership to The Presentation Guild, the new support and advocacy group for presentation professionals. The Power Point FAQ is presented by PPTools - Power Tools for Power Point. Here you'll find Power Point Help, Power Point Templates, Power Point Tips, Power Point Add-ins, How-Tos, Links and much more.