Constant notifications about low memory space are one of the most common problems of smartphone users. When the internal storage is filled to capacity, the system begins to work slower, applications crash, and new photos simply are not saved. In such a situation, many rush to delete their favorite games or important documents, but this is not always an effective method.
In fact, a significant part of the memory is often occupied by hidden files, messenger caches and duplicates that you don’t even know about. Proper cleaning allows you to free up gigabytes of space without losing valuable data. We will analyze proven methods for optimizing disk space, which are relevant for modern versions of the operating system.
Analyzing occupied space and searching for memory eaters
Before deleting anything, you need to understand what exactly is taking up space on your device. Modern Android shells have built-in analysis tools, but their capabilities are often limited to basic statistics. For a deep dive, it is better to use specialized utilities that visualize the folder structure.
Pay attention to the section "Other" or "System files", which is often bloated to incredible sizes. Residual files from uninstalled applications, error logs, and temporary update data may be hidden there. Without understanding the folder structure, you risk deleting system-important elements, which will lead to unstable operation of the gadget.
It is recommended to install an application like Files by Google or DiskUsage. These apps build a visual memory map, where the size of the rectangle corresponds to the size of the file. You will immediately see that, for example, the folder with the Telegram cache weighs 5 GB, although you thought that there were only a couple of correspondences there.
Use the “Storage Analysis” function in the settings immediately after rebooting the phone - this way the data will be the most accurate, since temporary files have not yet accumulated.
⚠️ Attention: Some system folders are marked as hidden or protected access rights. An attempt to forcibly delete files from directories
/systemor/datawithout root access can lead to “bricking” the device.
Clearing the application cache and system garbage
Caches are temporary data that applications save to speed up their work. Over time, this buffer grows, occupying hundreds of megabytes. Clearing the cache is the safest way to regain free space, as it does not delete your logins, passwords, or personal settings.
The procedure is performed through the device settings. You need to go to menu Settings → Applications → Manage applications. Select the heaviest app from the list (usually social networks or browsers) and press the "Clear cache"button. Do not confuse this button with the “Clear data” option, which will reset the application to its factory state.
There is also a system cache that accumulates while the OS is running. To clean it, you can use Recovery Mode, but this requires certain skills. It’s easier to use the built-in cleaning tool, which is often located in the Memory section or Device Maintenance.
☑️ Weekly memory hygiene
If you are using a browser Chrome or Yandex, do not forget to clear your download history inside the application itself. Often, users download APK installation files, use them once and forget to delete them, leaving them lying around as dead weight.
Working with instant messengers: Telegram, WhatsApp and Viber
Messengers are the absolute leaders in internal memory consumption. They automatically save every photo, video and voice message received. Without proper configuration, one application can quietly “eat up” 10-20 GB in six months of active use.
In Telegram the situation is solved most elegantly thanks to the cloud nature of the service. Go to Settings → Data and memory → Memory usage. Here you can set a limit on the cache size, for example, up to 500 MB. After reaching the limit, old files will be deleted automatically, while they will remain on the server and will be downloaded again by clicking.
With WhatsApp everything is more complicated, since it stores media files locally. You'll have to manually go into storage management inside the app and delete large videos or transferred files. It is also critically important to disable autosaving to the gallery so that duplicates do not multiply in the system.
| Messenger | Where to look for settings | Recommended action |
|---|---|---|
| Telegram | Settings → Data and memory | Set cache limit to 200-500 MB |
| Settings → Data and storage | Disable media autosave | |
| Viber | More → Settings → Memory | Clear manual cache |
| Signal | Settings → Storage and data | Set up automatic deletion |
Why do messengers take up so much space?
Messengers save not only the files themselves, but also their thumbnails, as well as message databases. When deleting correspondence, files may remain in hidden .thumbnails folders, which need to be cleaned separately through the file manager.
Removing duplicate photos and optimizing the gallery
The camera of modern smartphones creates high-resolution files that take up a lot of space. In addition, when editing photos, copies of the originals are often created, and if synchronization fails, complete duplicate images may appear.
Manually searching for identical images in a gallery of thousands of photos is a thankless and time-consuming task. It is better to use the “Search for Duplicates” function, which is available in many file managers and galleries from third-party developers. The algorithm compares not only file names, but also their contents, finding even slightly modified versions.
Do not forget to check the folder "Trash" or "Recently Deleted". Files you delete actually continue to take up space for 30 days, waiting to be finally erased. Freeing up this folder will instantly give you back the occupied space.
Consider using cloud services, such as Google Photos with the "Free up space" function. This option uploads the originals to the cloud and removes them from the device, leaving only high-quality thumbnails. This allows you to store thousands of pictures without filling up the internal memory of the phone.
Regularly cleaning the Trash folder in the gallery can instantly free up from 1 to 5 GB of space, which is formally already considered deleted, but physically still occupies memory sectors.
Transferring applications and data to a memory card
If your smartphone has a microSD slot, this is a great way to relieve internal storage. However, modern versions of Android limit the ability to transfer applications themselves to the card, allowing you to move only media files and documents.
To transfer data, go to the storage settings and select the memory card as the default recording location for the camera and voice recorder. Also, in the settings of some applications (for example, navigators or music players), you can manually specify the path for saving offline maps and playlists to external media.
There is a function Adoptable Storage (Adaptive storage) that allows you to format the memory card as internal. In this case, the system encrypts the card and merges it with the main memory. But be careful: the card will only work in this phone, and when it is removed, the data will become unreadable.
⚠️ Attention: Memory cards have slower read and write speeds compared to internal flash memory. Transferring heavy games or system applications to microSD can lead to noticeable slowdowns and long loading times.
Using developer tools and ADB
For advanced users for whom standard methods are not enough, there are command line tools. Using the utility ADB (Android Debug Bridge) you can remove system applications (bloatware) that are preinstalled by the manufacturer and cannot be removed in the usual way.
To work, you will need to enable USB debugging in the developer menu and connect the phone to the computer. Team pm uninstall -k --user 0 package name allows you to delete an application for the current user without affecting the system partition. This frees up space and reduces CPU load.
adb shell pm list packages -3
adb shell pm uninstall -k --user 0 com.facebook.katana
This method requires caution. Removing a critical system component could cause your phone to malfunction. Always check the purpose of the package before deleting it through search engines.
Prevention and maintaining order in files
The best way to deal with lack of space is prevention. Regular audit of files once a month takes no more than 10 minutes, but saves you from critical memory filling at the most inopportune moment.
Set up automatic cleaning of downloaded files. Many browsers and instant messengers allow you to set a rule: “Delete files from the downloads folder older than 30 days.” This will save you from accumulating old installers and temporary documents.
- 📂 Disable auto-downloading of videos on social networks to save cache.
- 🗑️ Set up automatic deletion of old screenshots that are rarely needed for a long time.
- ☁️ Use streaming playing music instead of storing FLAC files on the device.
Remember that full memory affects not only the volume, but also the speed of recording new data. When free space approaches zero, the memory controller works at its limit, which causes interface lags.
Install the “Cleaning” widget on your home screen. One tap on it will allow you to quickly reset the browser cache and delete temporary files without going deep into the settings.
Is it safe to delete the Android/data folder?
In new versions of Android, access to this folder is limited. Deleting its contents will reset the settings of many applications and delete the files they downloaded (for example, music in Spotify or maps in the navigator). The applications themselves will not be deleted, but you will have to configure them again.
Why is the space not freed up after deleting the files?
The files may have ended up in the gallery or file manager trash. Also check to see if cloud synchronization is enabled, which may temporarily cache deleted items. In rare cases, a device reboot is required to update the file system index.
How can you find out what exactly has taken up space in the “Other” section?
Standard Android settings do not detail this section. Use third-party disk space analyzer applications, such as DiskUsage or Storage Analyzer, which will show the exact size of every folder and file on the system.
Is it possible to expand the memory without a microSD card?
The built-in memory cannot be physically expanded. However, you can use cloud storage for photos and videos, as well as transfer heavy media files to a computer or external USB drive via an OTG adapter.