Ad-aware Plus
Ad-aware is a leading spyware removal utility that scans your memory, registry and hard drives for known advertising systems and spyware and lets you remove them safely. Ad-aware Plus also includes Ad-watch, a realtime spyware-monitor watching your memory and registry for spyware that tries to install or change your system, and triggers an alarm if any spyware is detected.

Some features:

• Exclude list to let Ad-aware ignore certain components
• Scanning of removable drives
• Backup and restore functionality: Now you can build backups easily before removing spyware components or fixing your registry. The included backup-manager lets you reinstall a backup with a single mouseclick.
• Multi language support
• Free lifetime updates+customer support
• Flexible user interface. You can now minimize the main window during scanning, for example.