How to Find the Serial Number or IMEI for your iPhone or iPad

Your iOS device has several numerical identifiers associated with it. Two of the most important are the device’s serial number and International Mobile Station Equipment Identity (IMEI) number. You can use both to identify your phone when you’re scheduling repairs, activating or deactivating devices, or even reporting a device lost or stolen.

What Is a “Portable” App, and Why Does It Matter?

Portable applications offer some definite advantages over their traditional counterparts. They’re lightweight and they allow you to move between computers while taking your applications and settings with you. Here’s why they’re different and why they’re sometimes—but not always—a good choice.

How to Remove an Old Computer from a Windows Homegroup

Windows Homegroup is great for sharing documents, pictures, and printers between computers on your home network. If you’ve had it set up for a while, you may have noticed that the ghosts of old computer hang around in your Homegroup list. Here’s how to banish them.

How to Disable the Action Center in Windows 10

The Action Center in Windows 10 collects notifications from Windows and other apps, displaying them in a single pop-up sidebar you can access from the Windows system tray. It also has buttons for performing quick system commands like toggling WI-FI and Bluetooth, setting quiet hours, or switching to tablet mode.