Modern tablets based on Android inevitably slow down over time. This is not a failure, but a natural process of accumulation of temporary files that the system and applications create during their operation. Cacheremnants of uninstalled apps and hidden logs take up precious space in the internal storage, causing the device to "suffocate."
Users often notice that the tablet takes a long time to open the menu and slows down when switching between tabs or even freeze. In such a situation, a complete flashing seems like a radical solution, but in most cases it is enough to do it competently cleaning the system manually. We will look at safe methods that will return your gadget former speed without the risk of losing personal data.
We will consider both built-in tools and proven third-party utilities. It's important to understand the difference between useful temporary files and real digital junk so you don't delete your settings. Get ready for the fact that after the procedure your tablet will work much faster.
Analyzing storage and searching for hidden files
Before deleting anything, you need to understand what exactly is taking up space. The built-in file manager often shows only obvious folders, hiding system junk. For accurate diagnostics, it is recommended to use specialized visualization utilities, such as DiskUsage or the built-in memory analyzer in the settings.
Go to the menu Settings → Storage. Here you will see a pie chart of the data distribution. Pay attention to the "Other" or "Miscellaneous" section. If this sector occupies more than 20-30% of the total volume, it means that a lot of hidden garbage has accumulated in the system, which requires manual cleaning.
⚠️ Attention: Do not delete files from system folders if you are not 100% sure of their purpose. An error can lead to the inoperability of individual applications or the system itself.
Pay special attention to the folder Download (Downloads). This is where browsers and instant messengers save everything you've ever downloaded by default. Old installation files APK, watched presentations and forgotten pictures can lie there for years, quietly eating up gigabytes.
Use the "Sort by size" function in the file manager to instantly find the largest files, which are often videos or archives that you forgot about.
Cleaning application cache and system services
Cache is a buffer memory that speeds up the launch of applications by storing temporary data. However, over time, this buffer grows to gigantic proportions and begins to slow down work operating system. This is especially true for social networks and browsers.
To clear the cache selectively, go to Settings → Applications. Select the heaviest application (for example, YouTube, Telegram or Chrome) and click on "Storage". There you will see two buttons: “Clear cache” and “Clear data”.
- 🧹 Clear cache - deletes only temporary files, speeding up work, but preserving logins and settings.
- 💣 Clear data - completely resets the application to its factory state, deleting accounts and history.
- 📂 Storage management —allows you to delete downloaded files within the application (for example, map cache or offline video).
For global clearing, you can use the developer menu, if it is activated. Go to Settings → For developers and find the item "Clear background process services". This will forcefully close all suspended tasks and free up RAM (RAM), which will instantly affect the performance of the interface.
☑️ Weekly hygiene tablet
Removing system garbage and residual files
When deleting applications using standard Android tools, empty folders and configuration files are often left on the disk. These are so-called "tails" that are not deleted automatically. Over time, their number becomes critical.
File managers with an analysis function, for example, Files by Google or SD Maidare best suited to combat them. These apps scan the internal memory for the presence of orphaned files (orphan files) that belong to already deleted apps.
| File type | Where is it located | Can it be deleted? | Impact on the system |
|---|---|---|---|
| .log files | /sdcard/Android/data | Yes | Low (frees up space) |
| .tmp files | /cache | Yes | Medium (speeds up work) |
| thumbnails | .thumbnails | Yes (with with reservations) | High (the gallery will build the preview again) |
| apk files | /Download | Yes | No (these are installers) |
Be careful with the folder .thumbnails. It stores thumbnails of your photos and videos. If you delete this folder, the gallery will begin to re-generate previews for all media files the next time you launch it, which can be very taxing on the processor and drain the battery. Delete it only if the space is critically small.
⚠️ Attention: Shell interfaces (MIUI, OneUI, ColorOS) may differ. Menu items are sometimes renamed or moved by developers in new versions of Android.
What to do if the folder is not deleted?
If the system writes “File busy” or “No access rights,” try rebooting the tablet into Safe Mode. To do this, hold down the power button, and in the menu that appears, long press the “Shut Down” icon on the screen. In safe mode, third-party applications will not start and will not block files.
Optimizing the operation of the browser and instant messengers
Browsers and instant messengers are the main generators of garbage on the tablet. Telegram and Viber by default, they save everything viewed photos and videos to internal memory. Without configuration, these applications can take up tens of gigabytes in a couple of months.
In settings Telegram go to the section Data and memory → Memory usage. Here you can set a limit on the cache size (for example, 500 MB) and configure automatic cleaning of old media files. Similar settings are available in WhatsApp in the section Storage and data.
In the browser Chrome or Yandex cleaning occurs through history. Go to menu (three dots) → History → Clear history. Select the "All time" period and be sure to check the "Images and other files saved in the cache" checkbox. This will delete temporary site data, but leave your passwords and bookmarks intact.
- 🚫 Disable auto-downloading media in messenger settings for group chats.
- 🗑️ Regularly clear the "Downloads" tab inside the browser itself, not just the cache.
- 🔒 Use incognito mode to view sites whose data you do not need.
Setting up auto-cleaning in messengers solves 80% of problems with low memory on tablets, since these applications are most active in the background.
Using built-in optimization tools
Tablet manufacturers often preinstall their own utilities for system maintenance. This is “Device Maintenance”, this is “Security”, this is “Phone Manager”. These tools are safer than third-party apps, as they have deep access to the system. Samsung This is "Device Maintenance" Xiaomi - "Security" Huawei - "Phone manager." These tools are safer than third-party apps as they have deep access to the system.
Launch the proprietary application and click the "Optimize" or "Clean" button. The system will automatically close background processes, delete temporary files, and scan your device for viruses. This is a quick way to get your tablet in order before an important task.
However, you should not rely only on them. Built-in cleaners often work superficially and do not remove deep system debris. Use them as an express method, and for deep cleaning, use the manual methods described above.
Crucial measures: Reset to factory settings
If none of the methods helped and the tablet continues to slow down, the system may have accumulated critical errors or file corruption. In this case, the only effective solution is a complete reset (Factory Reset).
This procedure will return the tablet to the condition it was in when purchased. All your apps, photos, contacts and settings will be permanently deleted. Therefore, before you begin, be sure to back up your important data in the cloud or on your computer.
Settings → System → Reset settings → Delete all data (reset to factory settings)After confirming the action, the tablet will reboot and begin the formatting process. This may take from 5 to 15 minutes depending on the amount of internal memory and the speed of the drive. Do not interrupt the process or turn off the device.
⚠️ Attention: After the reset, the system will be “clean”. Do not restore all applications from a backup at once, as you may return the same garbage that you got rid of. Install apps selectively.
Before resetting the settings, remove the microSD memory card, if installed. This will protect your files on the card from accidental formatting if you make a mistake in choosing a partition for cleaning.
Prevention and rules of digital hygiene
In order not to return to the issue of cleaning every month, it is worth changing your tablet usage habits. Regular maintenance takes a couple of minutes, but saves hours of nerves when dealing with brakes.
Try not to store files directly in the internal memory of the tablet. Use cloud storage (Google Drive, Yandex.Disk) or a memory card for photos, videos and documents. Internal memory should be primarily intended for installing applications and operating the system.
Disable auto-updating of applications via the mobile network if you have limited traffic, but leave it on Wi-Fi. Outdated versions of applications may not work correctly and generate more errors than newer versions. Regularly delete applications that you have not used for more than 3 months.
Is it safe to use cleaner applications like CCleaner?
You can use it, but with caution. Modern versions of Android (starting from 8.0) have strict restrictions on access to system files, so the effectiveness of such apps has decreased. They can clear the cache, but often show intrusive ads. The built-in tools are usually sufficient.
Why is the space freed up after cleaning, but quickly runs out again?
Most likely, you have activated synchronization of photos or videos in high quality, or messengers continue to automatically download media files. Check the startup settings in WhatsApp and Telegram, and also disable backup of photos in original quality if memory is limited.
Is it possible to delete the Android folder on the tablet?
Absolutely not. The folder /Android stores the data of all installed applications, their cache and Obb files (additional data for games). Deleting this folder will cause all applications to stop launching or be reset to their original settings.
How to clear the DNS cache on a tablet?
The easiest way is to turn Airplane Mode on and off. For deeper cleaning, you can go to Settings → Applications → Show system processes → Find "Google Play Services" or "Download Storage" → Clear cache. The command in the terminal (for advanced users) also helps: adb shell ndc resolver cleardefaultns.