Modern brand smartphones Samsung have powerful processors and excellent displays, but over time, owners begin to notice a decrease in performance. This is not due to hardware wear, but due to the accumulation of digital “junk” in the system. Application caches, residual files from uninstalled apps and forgotten downloads take up gigabytes of usable space, causing the device to slow down.
Automatic cleaners often fail to cope with the task 100%, leaving hidden directories untouched. Manual flushing allows you to monitor every byte removed and is guaranteed to free up space. In this guide, we will look at safe methods for deleting junk One UI without losing important data.
Analyzing occupied space through system settings
Before you start deleting files, you need to understand what exactly is taking up space in the memory of your device. The system Android on smartphones Samsung provides a built-in tool for detailed storage analysis. Go to menu Settings → Device maintenance → Memory. Here you will see a visual diagram of data distribution.
Pay attention to the “Other” section. This is often where the largest volumes of invisible trash are hidden. These could be temporary system update files or application error logs. By clicking on this category, you can see a list of folders that consume the most resources.
The system will also show the cache size for each installed application. Cache This is temporary data that speeds up the operation of apps, but it can grow to unimaginable sizes. For example, instant messengers or browsers can store gigabytes of viewed images and videos that you no longer need.
Clearing the cache of individual applications manually
The most effective way to free up space is to specifically clear the cache of heavy applications. Do not use the “Clear All” button in the storage settings, as this will also delete important authorization data in some apps. It’s better to go through the list manually, starting with the most “gluttonous.”
To do this, go to Settings → Applications and sort the list by size. Select an application, for example YouTube or Instagram, and click on “Storage”. You will see two buttons: “Clear data” and “Clear cache”. We are interested in the second option.
⚠️ Attention: Do not click “Clear data” if you do not want to reset the application settings to factory settings and log out of your account. This action will delete all history and saved preferences.
Repeat this procedure for browsers, social networks and instant messengers. In some cases, the volume of cleared cache can reach 1-2 GB per application. This will instantly restore the responsiveness of the interface and free up space for new files.
- 📱 Social networks (VKontakte, Telegram) are the main media cache drives.
- 🌐 Browsers (Chrome, Samsung Internet) - store thumbnails and website scripts.
- 🎵 Streaming services (Spotify, Yandex.Music) - cache tracks for offline listening.
Periodically clear the cache of applications that you use daily, but do not store critical information in them without a backup copy.
Removing residual files through the File Manager
Even after deleting applications, empty or half-filled folders often remain in the phone's memory. app developers do not always clean up traces of their activities. To search for such garbage, you will need a built-in file manager My Files (My files).
Open the application and go to the “Internal memory” section. Carefully study the list of directories. Look for folders with the names of deleted games or apps. Often they are located in the root of the repository or in the Android/datadirectory. If you are sure that the application has been deleted, you can safely delete the entire corresponding folder.
Pay special attention to the folder Download (Downloads). All files from the Internet, attachments from mail and documents are automatically saved here. Often, users forget about old installation files .apk or read PDF documents that take up space for months.
☑️ Checking folders for junk
It is also worth checking the directory DCIM/.thumbnails. In this hidden folder, the system stores thumbnails of your photos for quick display in the gallery. Over time, this file can grow to several gigabytes. It can be safely deleted; the system will create it again if necessary, but in a smaller size.
Working with the Android folder and system garbage
The directory Android is a system one, but many temporary files accumulate inside it. Inside there are two main folders: data and obb. C obb stores cache files of heavy games (textures, music). If you deleted a game, the folder with its name here must be deleted manually.
The folder data data of active applications is stored. You need to be careful here. Delete only those subfolders that match the names of already deleted apps. The rest should not be touched so as not to disrupt the operation of the current software.
⚠️ Attention: The interface for accessing the Android folder may change in new versions of One UI. If the system asks for access permission, confirm it, but do not change access rights to system files.
Another place where garbage accumulates is the folder Cache at the root of the internal memory. Some applications create it directly in the root, bypassing the standard paths. Check for the presence of such a directory and clear its contents.
What to do if the folder is not deleted?
If the system writes “File in use,” try rebooting the phone in safe mode. To do this, hold down the power button, and then hold your finger on the “Power off” icon on the screen for a long time until you are prompted to enter safe mode. In this mode, third-party applications will not launch, and you can delete a locked file.
Clearing the clipboard and temporary data
Few people know that the smartphone clipboard Samsung also has its own memory limit. If you frequently copy text, links, or screenshots, they are saved in the buffer history. This can slow down the keyboard and take up space in RAM.
To clear the buffer, open any keyboard (for example Samsung Keyboard). Click on the settings icon or three dots in the toolbar and select “Clipboard”. Here you will see a list of all copied items.
Click the edit button (pencil) and select "Delete all". This action will instantly free up resources used for storing text fragments. Regularly clearing the buffer is a good habit to keep your system clean.
| Data type | Location | Deletion security | Approximate volume |
|---|---|---|---|
| Application cache | Settings → Applications | Safe | 100 MB - 2 GB |
| Downloads | My files → Download | Requires verification | 500 MB - 10 GB |
| Thumbnails | DCIM → .thumbnails | Safe | 50 MB - 1 GB |
| Game leftovers (OBB) | Android → obb | Only for remote games | 1 GB - 5 GB |
Regular manual cleaning of the cache and downloads folder is more effective than any third-party utilities, since you control the process and do not delete necessary files by error.
Using maintenance mode and optimization
Smartphones Samsung have a built-in optimization function, which many ignore. It is in the menu Settings → Device Maintenance. Clicking the “Optimize Now” button closes background processes and conducts a quick check for obvious problems.
It is also worth using the “Clean Now” function in the memory section. It automatically finds duplicate files, unused applications and large files and suggests deleting them. This is a good start before manual cleaning.
If your phone is running slowly even after cleaning, the problem may be in background processes. Rebooting the device every 2-3 days helps clear temporary errors and free up RAM from frozen services.
⚠️ Attention: Functions and menu names may differ depending on the version of the One UI shell and the model of your smartphone. Always check the current interface of your device.
Enable the “Auto delete old screenshots” function in the gallery settings so that the phone itself gets rid of unnecessary images after 30 days.
Frequently asked questions (FAQ)
Is it possible to delete the Android folder completely?
No, you cannot delete the entire folder Android as it stores data from running applications. You can only delete specific subfolders inside data and obbthat correspond to already deleted apps or games.
Why is the space not freed up after cleaning?
Perhaps you only cleared the cache and did not delete large files from the "Downloads" folder or "Documents". Also check the trash in the gallery and file manager - deleted files are often stored there for another 30 days.
Is it safe to use apps like Clean Master?
Third-party cleaners often work aggressively and can delete the files you need. In addition, they themselves consume battery resources. The built-in tools Samsung are quite sufficient for safe cleaning.
How to clear the cache of system applications?
The cache of system applications (for example, “Phone” or “Contacts”) is cleared in the same way as regular apps, through the app settings menu. However, this should be done less frequently, since the system will be forced to re-index the data.
What to do if the memory is full immediately after cleaning?
This may indicate an error in the operation of a particular application that creates error logs endlessly, or a virus. Try deleting recently installed apps or resetting your phone to factory settings.