With real-time mode, Windows Defender will always be active and running in the background even if you do not activate it. Using real-time mode because Windows Defender will automatically notify you if any suspicious programs are detected on the computer drive. The time needed to detect the virus is also quite fast and not too consuming memory like many antiviruses on the internet. Besides Windows Defender protection mode can also be adjusted including: Real-Time Mode: Windows Defender will turn on continuously, and will instantly block suspected virus or malware files on your drive. Manual Scan: You must press the “Scan Now” button to make Windows Defender start scanning drives on your computer. Automatic Scanning: With this mode, you can specify the date and time schedule when Windows Defender will scan the files on your computer drive. Customizable: If you have a file that you think is harmless, but Windows Defender thinks it is a virus, you can make an exception to prevent Windows Defender from blocking the file. You can also specify which drives to include in the scan area and which drives do not want to scan, but it is recommended to scan all drives on your computer. In conclusion, Windows Defender is capable enough to detect suspicious files that may be considered as a virus or malware, other than that Windows Defender light enough to use and for configuration protection mode we can adjust to our desires. For those of you who need Windows Defender, you can download it through the following link.