How to Convert Between Fixed and Dynamic Disks in VirtualBox

VirtualBox allows you to choose either a dynamically allocated or fixed size disk when creating a new virtual hard disk file. Dynamically allocated disks are faster to create and can grow to larger sizes. Fixed size disks may be faster to use, but can’t grow any larger once they fill up. You can convert between the two formats and resize disks, if you like.

What Is ReFS (the Resilient File System) on Windows?

Microsoft’s new ReFS file system was originally introduced on Windows Server 2012. It’s included on Windows 10, where it can only be used as part of the drive-pooling Storage Spaces feature. ReFS will be improved in Windows Server 2016, and a leak from Microsoft indicates that it will be part of a new edition of Windows 10, named Windows 10 Pro for Advanced PCs.

How to Set Up Authy for Two-Factor Authentication (and Sync Your Codes Between Devices)

Strong passwords are not enough anymore: we recommend using two-factor authentication whenever possible. Ideally, that means using an app that generates authentication codes on your phone or a physical hardware token. We prefer Authy when it comes to authentication apps—it’s compatible with all sites that use Google Authenticator, but is more powerful and convenient.

What Is Mixed Reality on Windows 10, and When Will I Be Able to Buy it?

Microsoft is building an ecosystem of “Mixed Reality” headsets from various PC manufacturers. They’ll be much less expensive than the Oculus Rift and HTC Vive, and will require much less powerful PCs. Mixed Reality features are here today in the Creators Update, but the headsets themselves will be available for purchase sometime in the 2017 holiday season.

How to Disable the New Transparency Effects in Windows 10

With Microsoft’s new Fluent Design, announced alongside the Fall Creators Update, Windows 10 is gaining more and more transparency—or, technically, translucency. If you don’t like this effect, you can flip a switch to disable transparency in all parts of Windows 10, from the taskbar and Start menu to apps like Calculator and People.