The sudden appearance of annoying advertisements on the smartphone screen is one of the most common and annoying problems of Android users. This not only interferes with the comfortable use of the device, but also poses a threat to the security of your personal data and finances. Often the culprit is hidden or disguised apps that penetrate the system along with free utilities or dubious content.
The cleaning process can range from simply removing an icon to complex fight against viruses that have administrator rights. In this article, we will analyze in detail all the stages of diagnosing and eliminating malware in order to return your gadget to cleanliness and performance. We will look at both standard methods through settings, as well as advanced methods for complex cases.
Diagnostics and identification of the culprit
Before taking active steps, you need to determine exactly which application is causing the pop-ups. Often, malicious code is disguised as system services or does not have an icon in the menu at all. The first sign of infection is the appearance of advertising on the desktop or in the notification shade immediately after unlocking the screen.
For accurate identification, open the menu Settings → Applications → All applications. Carefully study the list of installed apps. Look for titles that consist of a bunch of random characters, or applications without an icon (blank space instead of a logo). Also pay attention to the installation date - often the virus enters the system at the same time that advertising begins to appear.
If a visual inspection does not produce results, use the built-in usage statistics. Go to section Settings → Battery → Battery Usage (the path may differ depending on the model Samsung, Xiaomi or Huawei). An app that is draining battery in the background but that you haven't used is highly likely the source of the problem.
Standard removal through settings
The simplest and most obvious method is uninstallation through the standard application management menu. If the malware does not have deep access rights, this method will work instantly. Find the suspicious item in the list and click on it to go to the application information screen.
On the screen that opens, find the button Delete. The system will ask you to confirm the action. Agree to the deletion, and the app will be erased from the device’s memory along with all its data. After this, it is recommended to restart the smartphone to clear the RAM of residual processes.
However, often the delete button may be inactive (gray). This is a clear sign that the application has gained elevated privileges. In this case, the standard method will not work, and you will need to revoke the app's special rights before deleting it. Do not try to remove system applications that you are not sure about - this may lead to unstable operation of the OS.
☑️ Check before deleting
Deprivation of device administrator rights
Many aggressive viruses block the ability to remove themselves by assigning themselves as device administrators. In this status, they prohibit the user from erasing their files. To bypass this protection, you need to go to a special section of the security settings and revoke permissions.
Follow the path Settings → Security → Device Administrators (or Settings → Biometrics and Security → Other security settings). Here you will see a list of apps that have special access. Uncheck the box next to the suspicious application. The system will warn you about disabling functions - confirm the action.
⚠️ Attention! If you see an unknown application with a blank name or a strange icon in the administrators list, disable it immediately. After that, return to the application menu and delete it in the standard way.
After revoking the rights, the button Delete in the application menu will become active. Uninstall and reboot your phone. If the list of administrators is empty or you did not find the culprit there, perhaps the virus uses other camouflage methods, for example, working through access services.
Removal via Safe Mode
If advertising appears constantly and prevents you from even entering the settings, the only way out is to boot in Safe Mode. In this mode, Android starts only with pre-installed system applications, and all third-party software is temporarily disabled.
To enter this mode, hold down the power button on a locked or unlocked screen. When the shutdown menu appears, press and hold the item with your finger Turn off (or Reboot on some models). A request to switch to safe mode will appear on the screen - confirm it.
After the reboot, “Safe Mode” will appear in the corner of the screen. Now you can safely go into the settings and remove the virus, since it will not be launched and will not be able to resist. To exit the mode, simply restart your smartphone in the usual way without holding down the buttons.
What to do if safe mode does not turn on?
If holding the power button does not work, try turning off the phone completely, and then turning it on by holding the volume down button while loading the manufacturer's logo. The method may differ for different brands.
Combating browsers and push notifications
The source of advertising is not always a separate application. Often, users themselves allow sites to send notifications, which then appear as system messages. This is especially true for browsers Chrome, Yandex or Opera.
To clear your browser, go to its settings and find the section Notifications or Sites. Review the list of allowed resources and remove any suspicious addresses. It is also recommended to clear the cache and browsing history to reset possible redirects.
The table below shows the paths to notification settings in popular browsers for quick checking:
| Browser | Path to settings | Action |
|---|---|---|
| Google Chrome | Settings → Notifications | Disable all or delete sites |
| Yandex Browser | Settings → Site notifications | Prohibit impressions |
| Mozilla Firefox | Settings → Notifications | Delete exceptions |
| Samsung Internet | Menu → Settings → Sites and downloads | Notifications |
After clearing the permission lists, the advertising should disappear. If it continues, check your installed browser extensions. Some plugins downloaded from third-party sources can embed their code into pages and generate pop-up windows.
Use Incognito mode to check. If there are no ads in this mode, then the problem is definitely in the cache, extensions or settings of the main browser profile.
Using a specialized antivirus
When manual methods do not help or you cannot find the source of the problem, anti-virus scanners come to the rescue. Modern security solutions are able to detect hidden threats, Trojans and spyware that are not displayed in the standard list of applications.
It is recommended to use proven solutions such as Malwarebytes, Dr.Web Light or Kaspersky Internet Security. Download the application exclusively from the official store Google Play. Run a full system scan and follow the app's instructions to disinfect or remove threats.
It is important to understand that an antivirus may suggest removing an application that you find useful. Read the threat description carefully. If a app is marked as Adware (adware) or Trojan, its removal is mandatory. After treatment, perform a second scan to ensure cleanliness.
⚠️ Attention! Avoid installing multiple antiviruses at the same time. They can conflict with each other, causing system slowdowns and false positives. Use one reliable solution.
Extreme measures: Reset to factory settings
If none of the above methods helped get rid of ads, there remains a radical, but the most effective method - a complete reset of the device (Hard Reset). This will return the phone to the state it was in immediately after purchase, erasing all user data and applications.
Before starting the procedure, be sure to back up important contacts, photos and documents. The process is irreversible, and it will be impossible to recover deleted files without a backup. Log in Settings → System → Reset settings → Delete all data.
After confirmation, the phone will reboot and begin the cleaning process, which may take several minutes. Once complete, you'll need to set up your device again and sign in to your Google Account. The advertising should disappear completely, as the root of the problem will be removed.
Resetting to factory settings guarantees the removal of any software virus, but requires careful preparation of backup copies of data.
Is it possible to remove a system advertising application without root access?
Regular system applications cannot be removed without superuser rights (Root). However, if it is pre-installed bloatware from the manufacturer, you can often simply “Disable” it in the application menu, which will hide it and stop working.
Why do ads appear even after uninstalling the application?
Perhaps there are several infected files left on the phone or the virus has installed itself as a hidden process. Also check your browser notification settings - often the source lies there.
Is it safe to use ad cleaning apps (AdBlock)?
Yes, using legal ad blockers is safe. However, avoid apps that promise to "speed up your phone" and require strange permissions - they themselves can be a source of viruses.
What to do if the "Delete" button is inactive?
This means that the application has administrator rights. Go to the security settings, find the "Device Administrators" section and uncheck the desired app. After this, deletion will become available.
How to prevent advertising from appearing in the future?
Download applications only from Google Play, carefully read reviews before installation, do not follow suspicious links in SMS and do not grant administrator rights to unknown apps.