Some users notice that the storage section labeled Other or System Data gradually becomes larger over time. At first it might occupy only a small portion of storage, but after several weeks it can expand to several gigabytes without any obvious explanation.
The problem usually appears when the device reports low storage even though personal files, apps, and media do not seem excessive. Opening the storage breakdown shows that “Other” is taking an unusually large amount of space.
What the “Other” Storage Category Actually Contains
The “Other” or “System Data” category is not a single type of file. It typically includes temporary system files, cached app data, logs, message attachments, browser caches, and leftover files created by apps during updates.
Under normal conditions, the system manages these files automatically. However, certain situations can cause the category to grow continuously instead of clearing itself.
Common Reasons the Category Keeps Expanding
The most frequent cause is cached data accumulating faster than the operating system removes it. Streaming apps, messaging apps, and browsers are particularly known for generating large temporary files.
Another possibility is incomplete app updates or failed background cleanup tasks. When that happens, temporary installation files may remain stored inside the system partition.
In some cases, messaging apps store large attachments, stickers, and previews in hidden directories that the storage summary groups under “Other.”
Restart the Device First
A simple restart often clears temporary memory caches and forces the system to rebuild storage indexing. This does not always reduce the category immediately, but it prevents temporary files from remaining locked.
Power the device completely off, wait about 30 seconds, then turn it back on. After restarting, check the storage section again.
Clear Application Cache
Apps that stream media or display large content libraries tend to generate heavy cache files.
Open the device settings and review apps that use large amounts of storage. Clearing the cache for browsers, social media apps, and streaming services can quickly reduce the “Other” category.
This does not remove your accounts or personal data. It only deletes temporary files created by the apps.
Remove Old Message Attachments
Messaging apps sometimes store downloaded images, voice messages, and video previews indefinitely. Over time these hidden files accumulate and appear inside the system storage category.
Open the messaging application and review large conversations or attachments. Deleting older media items can significantly reduce storage usage.
Update the Operating System
If the system cleanup process fails repeatedly, installing the latest operating system update may correct the storage reporting behavior.
Updates often include fixes for background storage indexing problems that cause incorrect “Other” storage growth.
Rebuild Storage Index by Rebooting Into Safe Mode
Booting into Safe Mode temporarily disables third-party applications. This allows the system to recalculate storage usage without interference from background apps.
If the storage size drops while in Safe Mode, a specific app is likely generating excessive temporary files.
Problems involving storage pressure can sometimes appear alongside performance issues. In situations where apps suddenly close during heavy memory use, a related example can be seen in this guide about devices that unexpectedly exit apps during memory spikes.
Last Option: Backup and Reset
If the “Other” category continues to grow even after clearing caches and updating the system, a factory reset may be necessary.
This removes leftover system files that remain after multiple updates or failed installations.
Before resetting the device, create a full backup of important files, contacts, and photos.
After the reset and initial setup, the storage breakdown should return to a normal distribution.