Does not require installation. You can run the executable directly from your desktop or a USB drive.
Useful when installing third-party antivirus software (like Kaspersky or Avast) that might conflict with Defender's active monitoring. Does not require installation
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. Does not require installation