Setting your device to use an SD card as internal storage allows you to install apps directly onto the SD card, eliminating the need to frequently move files when your internal storage is low.

If your Android phone is running out of storage space, many phones will allow you to insert an SD card, which you can set as the phone's primary storage.

If you've got an SD or microSD card, knowing how to format it is essential. Here's how to do that on Android devices, computers, and cameras.