Open Settings
Go to Apps
Select Installed apps or Apps & features
Find 360 Total Security
Click Uninstall
Confirm the uninstall prompt
Follow the on-screen removal steps
Restart your computer
If it remains, open Control Panel
Go to Programs and Features
Select 360 Total Security
Click Uninstall
Restart your computer again
If needed, use the 360 Total Security uninstaller from its installation folder
Remove leftover 360 folders from Program Files and AppData
Run a trusted antivirus or antimalware scan if desired