Microsoft's phone and tablet apps are free for devices with screens 10.1 inches or smaller.

Microsoft offers a browser-based version of Word, Excel, and PowerPoint for free. Just sign up for a Microsoft account (Outlook/Hotmail). It lacks a few advanced features, but for 90% of users, it is perfect.

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But what does "pre-activated" actually mean? Is it safe? Is it legal? And most importantly, are there better ways to get Office for free or cheap?