How to remove a notification on Android: not enough memory

The appearance of a pop-up window with a message that the device’s memory is full is one of the most annoying problems for owners of smartphones based on Android. This notification doesn't just interfere with your work, it blocks your ability to take new pictures, install application updates, or even receive messages in instant messengers. The system goes into strict resource saving mode, forcibly stopping background processes.

This signal cannot be ignored, since a critical lack of free space can lead to unstable operation of the operating system and a complete freeze of the gadget. In this detailed guide, we'll look at all the possible ways to free up space, from safe cache clearing to radical data reset methods. You will find out which files are actually taking up space and how to get rid of the annoying warning forever.

Diagnostics of full storage

Before deleting the first files you come across, you need to understand what exactly consumes the lion's share of your internal storage. Modern versions Android provide built-in analytics tools that clearly show the distribution of space. Go to the settings and find the section responsible for the state of the device to get an accurate picture.

Most often, multimedia files and the cache of social networks become the main “eaters” of memory. Users have been hoarding photos and videos for years, forgetting that every minute of 4K recording takes up gigabytes of space. It is also worth paying attention to the “Applications” section, where long-unused apps with a huge amount of data can be hidden.

System files and update data can also take up a significant amount of space, especially if previous updates were not cleaned correctly. In some cases, the error may be false due to a failure in indexing the file system, but you should not rely on luck.

⚠️ Attention: If you see that the “Other” or “System” section takes up a disproportionate amount of space (more than 20-30 GB on a regular phone), this may indicate a storage logic error or the presence of hidden debug logs.

Clearing application cache and system data

The fastest and safest way to free up space is to clear the cache. Cached data are temporary files that applications create to speed up their work. They are not critical, and deleting them will not result in the loss of your personal data, logins, or game progress.

To manually clear them, you will need to go to your device's settings menu. Navigation may vary slightly depending on the manufacturer's shell (MIUI, OneUI, ColorOS), but the general principle remains the same for the entire ecosystem Android.

Follow the following steps to clear the data of a specific "heavy" application:

• 📱 Open Settings and go to the section Applications.
• 🔍 Find in the list the application that takes up the most space (often Telegram, WhatsApp, YouTube or TikTok).
• 🗑️ Click on the button Storage or Memory, and then select Clear cache.

Do not confuse the "Clear cache" button with the "Clear data" button. The second option will completely remove the application and reset it to factory state, which will require re-authorization. Use it only as a last resort if the application does not work correctly.

Deleting and transferring multimedia files

Smartphone gallery is the first place where It's worth a look if you're low on memory. Modern cameras shoot in high definition, and one minute of video in 4K 60fps format can weigh about 400 megabytes. The accumulation of such content quickly fills the internal storage.

It is recommended to regularly audit media files. Remove blurry photos, bad duplicates, and screenshots that are no longer relevant. For video files, the best solution is to transfer them to external storage or cloud storage.

If your smartphone supports memory cards microSD, you can transfer most of your photos and music to an external drive. This will instantly free up precious gigabytes of internal memory for operating the system and installing applications.

File type	Approximate size (1 minute)	Recommended action
Photo (12 MP)	3-5 MB	Compressed or cloud
Video (1080p)	100-150 MB	Transfer to PC/SD
Video (4K)	350-500 MB	Must be deleted from the phone
RAW pictures	25-40 MB	Only for pros, delete

Also check the folder Download (Downloads). Often installation files accumulate there APK, documents and archives that were needed once and have long since lost their relevance.

Working with instant messengers and social networks

Messengers like Telegram i WhatsApp have the unpleasant feature of automatically saving all received images and videos to the device’s memory. Even if you are just browsing channels or chats, media files are cached and take up space that can reach tens of gigabytes.

In the settings of the applications themselves, you can disable autosaving of media to the gallery. This will prevent duplication of files: they will remain available inside the chat, but will not take up space in the general storage of the phone as separate files.

How to clear the Telegram cache safely?

Inside the Telegram application, go to Settings → Data and memory → Memory usage. Click Clear Cache. You can configure automatic cache deletion, for example, delete files that have not been opened for more than 3 days. Your chats and correspondence history will not be affected.

For WhatsApp the procedure is similar, but it is also worth checking the document folder. Often, users forward heavy presentations and videos to each other, which are saved forever. Regular cleaning of the "Documents", "Video" and "Audio" tabs inside the messenger storage settings can free up up to 5-10 GB of space.

⚠️ Attention: Before mass clearing messenger data, be sure to create a backup copy of chats in Google Drive or iCloud so as not to lose important correspondence forever.

Deleting unused applications and games

Games and applications are not only the installation file itself, but also additional data (game cache, resources, offline maps). Modern mobile games can take up 5-10 GB of space each. If you haven't opened the game in the last two months, you probably won't get back to it.

Go to the application management section and sort them by size. Ruthlessly remove everything you don't use. Pay special attention to photo editing apps, navigators with loaded maps, and streaming services with offline mode.

If you rarely need an application, but it’s a pity to delete it, try to find its lightweight version (Lite). For example, Facebook Lite or Google Go take up much less space and load the system less.

Remember that some system applications cannot be removed using standard methods, but they can be disabled. This will hide them from the menu and stop background processes, although they will continue to take up disk space.

Dramatic measures: Reset to factory settings

If none of the above methods helped and the "Out of Memory" notification continues to appear immediately after cleaning, the problem may lie in deep system errors or file system fragmentation. In this case, the only effective solution is to completely reset the device.

This procedure will return the smartphone to the state it was in when purchased. All your personal data, contacts, photos and installed applications will be permanently deleted. Therefore, preparation for this step must be thorough.

To perform a reset, go to the settings menu. The path usually looks like this: Settings → System → Reset settings → Deleting all data (reset to factory settings).

adb reboot recovery

In some cases, if the phone does not boot normally due to lack of memory, reset can be performed through the Recoverymode. To do this, you need to turn off the phone and hold down the combination of buttons (usually Volume Up + Power), then select Wipe data/factory reset.

⚠️ Attention: Make sure the battery charge is at least 50% before starting the reset. Interrupting the process due to a discharge can turn your smartphone into a “brick” that cannot be turned on.

Prevention and optimization in the future

To prevent the problem with low memory from returning in a month, Smartphone usage habits need to change. Enable automatic synchronization of photos with cloud services, such as Google Photoswith the "Free up space" function.

Regularly, at least once a week, check your downloads folder and the cache of heavy applications. Do not allow the memory to be filled to capacity - for correct operation Android at least 10-15% of the total storage capacity should always be free.

Use memory cards to store media if your phone supports this function. Configure the camera so that new pictures and videos are saved by default to SD cardand not to the internal memory.

Why does the memory fill up so quickly after cleaning?

Most often this happens due to the work of instant messengers and social networks, which download new media files in the background. The system can also create swap files or error logs if the disk space is critically low.

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

It is not recommended to manually delete files from this folder without understanding their purpose. This may result in loss of progress in games or settings in applications. It is better to use the cache clearing function through the system settings.

Does lack of memory affect the speed of the phone?

Yes, critically. When the internal memory is more than 90% full, the speed of writing and reading data drops significantly, which causes severe interface slowdowns and long application launches.

What to do if the "Clear cache" button is inactive?

This may mean that the application cache has already been cleared or is equal to zero. Also, in some new versions of Android, access to this function for system applications is limited to superuser rights.