You might have unwanted software or malware installed on your computer if you experience:
- Pop-up ads and new tabs that won't go away
- Your Chrome homepage or search engine keeps changing without your permission
- Unwanted Chrome extensions or toolbars keep coming back
- Your browsing is hijacked, and redirects to unfamiliar pages or ads
- Alerts about a virus or an infected device
Tips:
- Use Safe Browsing in Chrome
- Avoid malware in the future
- Learn how to block or allow pop-ups in Chrome
Step 1: Remove problematic apps
- On an Android phone or tablet, press and hold your device's power button.
- On your screen, touch and hold Power off
.
- Confirm you want to reboot your device in Safe mode. When you restart, at the bottom, you can find "Safe mode."
- One by one, remove recently downloaded apps. Learn how to delete apps.
- Tip: To remember the apps that you remove so that you can add them back, make a list.
- After each removal, restart your device normally. See whether removing that app solved the problem.
- After you remove the app that caused the problem, you can add back the other apps that you removed. Learn how to reinstall apps.
.
Step 2: Protect your device from problematic apps
Important: Make sure Play Protect is on.
- On your Android device, open Google Play Store
.
- At the top right, tap your Profile picture or Initial
Play Protect
.
- Turn Scan apps with Play Protect on.
Play Protect 
.Step 3: Stop notifications from a certain website
If you're seeing annoying notifications from a website, turn off the permission:
- On your Android device, open Chrome
.
- To change notifications, go to the site that you want to stop notifications from.
- At the top left, tap Page info
- If you don't find "Permissions," the site doesn't have notifications turned on.
- Tap Notifications.
- Turn Show notifications off.