As you use
HTC One, you'll accumulate data and fill its storage capacity over time.
Here are some tips on how to increase storage space.
Run the storage wizard
Free up space in the phone storage by uninstalling apps and deleting files you no longer want to keep. In Settings, tap
Store files on your online storage
Photos, email attachments, and other documents can be stored on your online storage and accessed anywhere you are.
Back up apps data
Keep only the most recent data from apps on
HTC One. You can back up calendars, contacts, and bookmarks or export text messages, and personal dictionaries.
Disable some apps
Apps, even if not used often, may be running in the background and downloading data into the phone storage. If the app cannot be removed, you can disable it. In Settings, tap
Apps and then swipe to
All. Select the app you want to disable, and then tap