Too many files on Android: what to do and how to clear memory

Owners of Androidsmartphones often encounter a sudden message about lack of space or the “Too many files created” error, which blocks the operation of applications. This is not just a glitch of the system, but a signal that it is file system overflowing with temporary data, logs and remnants of deleted apps. Ignoring this problem leads to the fact that the device begins to work slower, and new photos or messages are no longer saved.

There is no need to panic when such a notification appears, since in 90% of cases the problem is solved using software methods without contacting a service center. You have to audit the storage, find hidden folders and wisely remove unnecessary things without damaging system data. In this instruction, we will look at step-by-step guide to free up space on any Android device.

Diagnostics: what is taking up space on your device

Before deleting everything, you need to understand the structure of memory occupancy. The system Android divides files into user data, application cache and system files. Often the problem is created not by your personal photos, but by messengers that have been copying every image received for years.

To start the analysis, go to the menu Settings → Storage (the path may differ slightly depending on the model, for example Settings → Storage). Here you'll see a visual chart that clearly shows which category is taking up the most megabytes. Pay attention to the “Applications” section, as they generate the majority of temporary files.

⚠️ Attention: Do not delete files from folders named “System”, “Android” or “Data” if you are not sure of their purpose. Deleting system logs can lead to unstable operation of the operating system.

Particular attention should be paid to messenger folders, such as WhatsApp or Telegram. These apps save all media files to the device memory by default. If you are a member of dozens of chats, the volume of accumulated “digital garbage” can reach tens of gigabytes, which causes an overflow error.

Clearing cache and temporary system files

The fastest way to free up space is cleaning cache. This is temporary data that applications use to load quickly, but over time it bloats and begins to take up critical space. Unlike user data, the cache can be deleted painlessly.

To perform this operation, go to the Applications section in the settings. Sort the list by memory size. Select the heaviest applications (usually browsers, social networks and video hosting) and click the “Clear cache” button. Do not confuse it with the “Erase Data” button, which will delete your logins and settings.

It is also worth using the built-in cleaning utility if your shell has one (for example, Device Care on Samsung or “Cleaning” on Xiaomi). These tools automatically find temporary files that can be safely deleted. However, you should not rely only on them, as they often do not see deep debris.

After clearing the cache, it is recommended to reboot the device. This will allow the system to recalculate file indices and correctly display the freed space. If the “too many files” error still appears, proceed to a deeper cleaning.

Working with messenger junk files

Messengers are the main culprits for low memory on a modern smartphone. They create separate folders for each chat and channel, saving all pictures, videos and documents there. Even if you deleted correspondence in the application, the files may remain in the file system.

To find this hidden cargo, open a file manager (for example Files by Google or the built-in Explorer). You need folders Android/media or root folders with the names of messengers. Inside, look for the directories Images, Video i Documents.

• 🗑️ Delete the folder Sent in the WhatsApp directory - copies of all the files you sent are stored there.
• 🗑️ Check the folder Telegram → Telegram Images and delete previews from channels that you didn’t even open.
• 🗑️ Find the folder .Status (hidden) in WhatsApp - the statuses of contacts that you don’t need are saved there.

It is important to note that after manually clearing files through Explorer, they may disappear from the messenger chats, but will remain available for viewing within the messenger itself applications until synchronization. This is normal.

Analysis of hidden folders and files.thumbnails

One of the most insidious problems Android is the folder .thumbnails. The system creates thumbnails for all images in the gallery so that they open faster. Over time, the weight of this hidden folder can grow to several gigabytes, although visually you only see ordinary photos.

You can find this folder only by turning on the display of hidden files in Explorer (usually three dots in the corner of the screen → “Show hidden files”). The path to it most often looks like DCIM/.thumbnails. If you see huge files there, you can safely delete them.

The system will automatically create this folder again, but it will weigh a minimum. This is an effective way to instantly free up 2-5 GB of space. It is also worth checking the folder Lost.dir —the system drops files there whose saving was interrupted. If you do not need data recovery after a failure, the contents can be deleted.

⚠️ Warning: The.thumbnails folder can quickly grow again. To prevent this, some users create an empty file with the name .thumbnails (without extension) and block it from being written, but this can slow down the gallery.

Using specialized tools for cleaning

Manually sorting through thousands of files is time-consuming and inconvenient. To automate the process, there are proven utilities that have access to system logs and can find what is hidden from the standard explorer. However, you need to choose them with caution.

It is recommended to use only certified solutions, such as Files by Google, SD Maid or Clean Master (with caution). These applications scan the device for duplicates, residual files after removing apps and empty folders.

Below is a table comparing popular cleaning methods:

Cleaning method	Efficiency	Security	Complexity
Built-in Android cleaning	Medium	High	Low
Manual deletion in Explorer	High	Average	High
Third-party applications (Cleaners)	High	Medium	Low
Factory reset settings	Maximum	Low (risk of data loss)	Medium

When using third-party applications, be sure to check which files they offer to delete. Blindly agreeing to everything can lead to the loss of important documents or settings.

Radical measures: resetting and transferring data

If no methods help and the message “Too many files created” appears immediately after turning on, the file table may be damaged or the drive is physically worn out. In this case, a full reset helps.

Before doing this, be sure to transfer backup copy all important data to your computer or to the cloud. Then go to Settings → System → Reset settings. Select the "Delete all data" option. This will return the phone to the “as from the store” state.

What to do if the reset did not help?

If even after a full reset and without installing applications, the error returns, most likely The flash memory of the smartphone is faulty. The board or device needs to be replaced.

Also consider transferring data to a memory card or cloud storage. Many modern smartphones allow you to set up automatic uploading of photos to Google Photos with subsequent deletion of them from the device memory.

Often asked questions (FAQ)

Is it possible to delete files from the Android/data folder?

You can delete files inside folders of specific applications (for example, game cache), this will free up space. However, deleting the folder structure itself or files with unknown names inside system directories is not recommended - this can break the operation of applications.

Why does the memory fill up again every other day?

Most likely, you have autosave enabled in instant messengers or social network applications. Check your WhatsApp, Telegram and Instagram settings to disable uploading media to the gallery. It is also possible that one of the applications is “leaking”, creating error logs endlessly.

Is it safe to use cleaner applications?

You can only use trusted applications from reputable developers. Aggressive “accelerators” are often virus-miners themselves or show intrusive advertising, consuming resources that are supposedly designed to save.

What to do if the phone says “Memory is full”, but the files are not deleted?

Try deleting files via a computer by connecting the phone via USB. If this does not help, the drive may have switched to read-only mode due to wear and tear, and the device needs to be repaired.