How to Install Windows 10 on Your PC

There are several ways to install Windows 10 on your PC, whether you’re upgrading from Windows 7 or 8, installing a new operating system from scratch, or reinstalling a fresh version of Windows 10. There are still ways to get a free Windows 10 upgrade license, too.

How to Create a Bootable DOS USB Drive

DOS isn’t widely used anymore, but you’re still likely at some point to need to boot into a DOS environment. Windows’ built-in formatting utility lets you create a DOS-bootable floppy drive, but not a USB drive. Here’s how to get around that.

How to Boot Your Computer From a Disc or USB Drive

Usually, you boot your computer from its main hard drive, which contains your operating system (like Windows). But occasionally, you may need to boot from a CD, DVD, or USB drive—say, if you’re running a recovery program, or testing out a new operating system like Linux.

How to Fix Startup Problems with the Windows Startup Repair Tool

If Windows isn’t starting properly, you can often use the integrated “startup repair” tool to fix it. This recovery tool will scan your PC for problems like missing or damaged system files. It can’t fix hardware issues or Windows installation problems, but it’s a great first place to start if you’re experiencing trouble booting into Windows.

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.

How to Manage App Permissions on Android

Android permissions used to be a mess, but modern versions of Android have simplified them greatly. Now, Android has an iOS-style permission system in which you grant apps access to certain features, hardware, or data as it needs them. You can also manually revoke permissions from any app—even ones designed for old versions of Android.