Over time, any tablet, regardless of its initial power, begins to work slower. This is an inevitable process of accumulation of digital waste in the system. Temporary filesapplication cache and remnants of deleted apps take up precious space in the internal memory, causing the interface to slow down. Users often encounter a situation where the device warns of low space, although visually large files are not observed.
Cleaning the system is not just deleting unnecessary photos. This is a comprehensive process of optimizing the operation of the operating system Android. A competent approach allows you to return your tablet to its former response speed and free up gigabytes of space without losing important data. In this article we will analyze in detail all the methods: from built-in tools to advanced cleaning methods through developer mode.
Before taking radical measures, it is important to understand the nature of “garbage”. The system creates temporary files to speed up the loading of frequently used apps. However, over time, these files cease to be useful, but continue to take up space. Regular maintenance of the gadget becomes a necessity for comfortable use.
Storage diagnostics and memory analysis
The first step should always be diagnostics. It is necessary to determine exactly what is eating up free space. Modern versions Android have a built-in memory analyzer that clearly shows the data distribution. Go to Settings → Storageto see detailed statistics.
The system automatically categorizes files: applications, images, videos, audio, etc. It often turns out that the lion's share is occupied by messengers like Telegram or Viber, which save the entire media history of correspondence. Analysis allows you to identify such “hidden eaters” of memory that are not visible in a regular file manager.
Pay attention to the “Miscellaneous” or “System Files” section. If this partition is abnormally large, the system may have accumulated error logs or remnants of failed updates. In such a situation, simply clearing the cache may not help, and deeper intervention in the file structure will be required.
⚠️ Attention: Before deleting any files from the “Downloads” or “Documents” section, carefully check their contents. Important receipts, tickets or work files may be stored there, which the system does not distinguish as garbage.
Clearing the application cache manually
The safest and most effective way to free up space is to manually clear the cache of specific applications. A cache is temporary data that a app downloads from the network for quick access. For example, the browser saves images of sites, and social networks save viewed feeds.
To clean up, go to Settings → Applications. Select the most “heavy” application, for example YouTube or Instagram. Inside the application menu, find the “Storage” item and press the Clear cachebutton. It is important not to confuse this button with the “Clear data” function, which will reset the application to factory settings and delete your logins.
This procedure is absolutely safe for your personal data. After cleaning, the application may take a little longer to load when first launched because it will have to download the necessary resources again. However, you will instantly get anywhere from several hundred megabytes to several gigabytes of free space.
- 🗑️ The browser cache often takes up the most space due to saved site thumbnails.
- 📸 Gallery and photo editors create hidden thumbnails for quick previews.
- 🎮 Games store temporary files of levels and textures that can be safely deleted.
If the "Clear cache" button is inactive (gray), it means that the application is not currently using temporary storage or the cache has already been cleared by the system.
Using built-in optimization tools
Tablet manufacturers often pre-install their own utilities for system maintenance. On devices Samsung this is the “Device Care” section, on Xiaomi it is the “Security” application. These tools work automatically and are suitable for most users.
The launch of such a utility is usually located in the notification shade or in the settings. The system scans for residual files, advertising junk and unused applications. Automatic optimization can also close background processes, freeing up RAM (RAM), which has a positive effect on performance.
Despite the convenience, Don't rely solely on automatic cleaners. They often work superficially and miss deep system logs. Use them as an express method, but for complete cleaning, combine with the manual methods described above.
Deleting residual files and folders
When deleting applications, empty folders or configuration files are often left on the system. To find them, you will need a file manager. Both the built-in explorer and third-party solutions are suitable, for example Files by Google or Total Commander.
Look for folders with the names of remote apps. It is also worth checking the root directory for folders named .thumbnails or temp. The folder Android/obb may contain data from games that you have long deleted. These files can weigh gigabytes and are of no use after uninstalling the game.
Be extremely careful when deleting files in the system root. Do not touch folders System, Data (without application subfolders) and files with the extension .apkif you are not sure of their origin. Removing system libraries can lead to unstable operation of the tablet.
| File type | Location | Deletion security | Approximate weight |
|---|---|---|---|
| Application cache | /data/data/ |
High (via settings) | 500 MB - 2 GB |
| Remaining games | Android/obb/ |
High (if the game is deleted) | 1 GB - 10 GB |
| Photo thumbnails | DCIM/.thumbnails |
Medium (will slow down the gallery) | 100 MB - 1 GB |
| System logs | /data/log/ |
Low (requires root) | 50 MB - 500 MB |
What is the .thumbnails folder?
This is a hidden directory where the system stores small copies of all your photos for quick display in the gallery. Over time, it can grow to gigantic proportions. It can be deleted, but the system will create it again the next time you open the gallery.
Cleaning downloads and media files
The "Downloads" folder (Downloads) is the most popular place for digital junk to accumulate. Installation files .apk, open documents PDF and attachments from mail are automatically saved here. Users often download a file, install it and forget to delete the original.
Go to the file manager and sort the files by date or size. Remove any app installers you have already used. Check your messenger folders, where duplicate photos and videos sent in chats are often saved. These duplicates are not needed if the originals are already in the dialogue.
For video files, use the "Trash" function in the gallery. After deletion, files take up space in special storage for another 30 days. To free up space immediately, you need to go to the gallery settings and empty the trash completely. This action is irreversible.
☑️ Audit the Downloads folder
Advanced cleaning through developer mode
For experienced users, there is the option of cleaning through the developer menu. This method allows you to delete temporary files more aggressively. To activate the mode, click 7 times on the build number in the section About tablet.
In the “For Developers” menu that appears, find the item related to background processes or application limit. While there's no direct "delete all" button, limiting background processes prevents new junk from accumulating in RAM. Some firmware allows you to force stop all background services.
Also in this section you can enable the “Do not save actions” option. This will prevent the system from saving the history of your activities in certain applications, which will slightly reduce the amount of data recorded. Use these settings with caution as they may affect multitasking.
⚠️ Warning: Changing settings in developer mode may lead to unpredictable system behavior. Do not disable USB debugging and do not change animation settings if you do not understand their purpose.
Developer mode is a powerful tool, but standard storage settings and manual cache deletion are sufficient for normal garbage cleaning.
Transferring data to external media
If the tablet's internal memory is full to capacity, transferring is the best solution media files to the memory card microSD. Modern tablets allow you to format the card as internal storage, which allows you to install applications there.
Go to the storage settings and select your memory card. Click Format As Internal. After this, the system will offer to transfer existing data. This solution radically unloads the main memory section, leaving it free for system needs and cache.
Remember that when you format the card as internal memory, it is encrypted and can no longer be read on other devices. If you remove the card from this tablet, the data on it will no longer be accessible without a special reset. Use high-quality speed cards Class 10 or UHS-Ito avoid slowing down your tablet.
Frequently asked questions (FAQ)
Is it safe to use third-party cleaner applications?
Most popular cleaners are safe, but often they themselves become a source of advertising and unnecessary load on the system. Built-in tools Android usually sufficient. Avoid apps that require root access without a good reason, as this can disrupt the system.
Why does the space quickly run out again after cleaning?
This is normal for active users. Messengers and browsers constantly generate new caches. If the space disappears too quickly (gigabytes per day), check whether automatic media downloading is enabled in your messenger settings.
Is it possible to delete the Android folder completely?
Absolutely not. The folder Android contains critical data for the operation of all installed applications. Deleting this folder will cause apps to stop running and settings to be reset. You can only delete subfolders of specific deleted applications.
How to clear junk without losing photos?
Use the “Clear cache” function in application settings, not “Clear data”. The cache does not contain your personal photos. Also, before any large-scale cleaning, it is recommended to back up important files to cloud storage.