Contrary to the others opinions, I think that SuperAntiSpyware is a good software perhaps underestimated.
It has a decent malware recognition but has functions that other similar software does not have for example a series of modules for resolving problems such as the application of suspicious changes to the registry and security policies, the repair of the operating system areas that have been changed by malware for example rehabilitate system tray area, the Task Manager, the Control Panel, delete restrictive policy added by malware, Winsock repair and so on.
The freeware version does not update the database automatically but this procedure should always be done manually.
Good for me.