Useful when installing third-party antivirus software (like Kaspersky or Avast) that might conflict with Defender's active monitoring.
Uses a color-coded system— green means protection is active, and red means it is disabled.
Typically provided as a compressed .rar file to bypass web filters and reduce size.
The site (often found at sigma4pc.org or sigma-4pc.com) is a popular Arabic-language platform for downloading "activated" or "repacked" software and PC utilities.