What types of files are included in the "other" phone storage category?

To check your storage space from your phone
1. In the App list, tap Settings Settings icon > Phone storage.
2. Tap the Phone or SD card bar. You’ll see a breakdown of the storage space used by category, and also the amount of free space left.

To check your storage space from the Windows Phone app
1. On your computer, open the Windows Phone app. (If this is your first time using the Windows Phone app, click Get started.)
2. In the On your phone section, view the bar at the bottom to check the amount of used and free space on your phone.
3. To see a breakdown of the storage space used by category, click the bar.

Seeing how much space is used by different kinds of files in the Windows Phone app.

From there you can take a closer look at what’s using up space so you’ll know where you can try cleaning up first.

Storage categories
When you check your storage space on your phone, you’ll see different categories of files that are using space. (If you’re viewing your storage breakdown via the Windows Phone app, the categories may look a little different.) Here’s a list of them:

* Music+videos – Music, videos from the Windows Phone Store, and podcasts.
* Pictures – Pictures and videos taken by your phone’s camera or saved to your phone.
* Apps – Installed apps and games.
* Other – Files that didn’t fit into another category, file types your phone doesn’t recognize, and temporary files. (See below for more details.)
* System – Files required to make your phone run.
* Free space – Storage space unused by any files.

The Other category contains a variety of file types:

* Files you can manage that didn’t fit into another category. These include emails and messages (including attachments), documents, and downloaded maps. See the More tips for freeing up space section below for how to manage these.
* File types your phone doesn’t recognize. These are file types that Windows Phone doesn’t support. Use File Explorer to view and manage these from your computer.
* Temporary files. Cached files (such as photo and video uploads to SkyDrive) and thumbnails from photos and online photo albums.