Malware is a serious threat to your laptop's security, and it's important to take steps to protect your device from malicious software. Fortunately, there are a few simple steps you can take to ensure your laptop is safe from malware. First, make sure you have the latest version of your antivirus or Internet security software installed. This will help protect your laptop from the latest threats.
You should also update your operating system regularly, as this will help keep your laptop secure. Next, you should delete any temporary files using the “Clean Disk” option. This will help remove any malicious software that may have been installed on your laptop. Now is the time to run a virus scan with your chosen antivirus or Internet security software.
If you are using Kaspersky Internet Security, select and run “Scan”. It's also a good idea to uninstall any software you don't recognize and then run a virus scan with antivirus or Internet security software to check for threats. Pop-up windows that appear when the browser is closed are a telltale sign of a virus. If you see them, take immediate steps to remove the virus by following the steps described above.
Finally, be sure to back up your data regularly so that if your laptop does become infected with malware, you won't lose any important files.