Galaxy device slows down, freezes, or displays ads after installing third-party apps
If you have recently installed a third-party app on your Galaxy device, you may see frequent pop-ups or messages, such as “may slow down”, “battery drains quickly", "storage is low", "device heats up", or "smartphone is dangerous.” You can use the Device care feature to optimise your device by putting unnecessary third-party apps to sleep, as well as scanning for malware, checking your battery usage, and freeing up storage space. Or, you can uninstall problematic or malicious apps.
Note: It is recommended to use the Galaxy Store and the Play Store to install authorised apps on your Galaxy device.
You can use Device care notifications to keep track of third-party apps that may be installed on your device. Device care will scan for malicious apps and then alert you with notifications.
Check for sleeping apps
Step 1. Swipe down from the top of the screen to open the Notification panel, and then tap the Device care notification.
Step 2. Check the list of sleeping apps.
Remove apps
Step 1. Swipe down from the top of the screen to open the Notification panel, and then tap the Device care notification > View apps.
Step 2. Check the list of apps and then select the app you’d like to delete. Tap Uninstall.
Step 3. Tap OK.
If you accidentally cleared the Device care notification, you can still check and remove malicious apps from your Galaxy device using the Device care menu and the self-diagnosis feature. However, the app must be put to sleep in Device Care before you can view it.
Check for sleeping apps
Step 1. Navigate to and open Settings > Battery and device care.
Step 2. Tap Battery.
Step 3. Tap Background usage limits.
Step 4. Tap Sleeping apps, and then check if the problematic or malicious app appears in the list.
Delete the app
Step 1. Navigate to and open Settings > Battery and device care.
Step 2. Tap Diagnostics.
Step 3. Tap App security check.
Step 4. Check the list of apps, and then select the app you’d like to delete. Tap Delete > OK.
Even if you have not received Device care notifications concerning malicious apps, you can still uninstall unwanted apps from your Galaxy device. If you cannot find the app in the Apps screen, you can use the Apps menu in Settings.
Step 1. Navigate to and open Settings > Apps.
Step 2. Select the app you’d like to delete.
Step 3. Tap Uninstall > OK.
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