Manclick.A is a worm that installs on computers under the guise of a Windows folder. When this worm is run, it passes itself off as the web page of the Google search engine. The appearance of this page is very similar to the original one and the results, if a user were to click them, could lead to malicious websites that download malware or take other malicious action.The worm creates several copies of itself on the system and it also creates two registry keys to ensure it is run every time the system is started up. Similarly, it deletes certain Windows registry keys to prevent the computer from starting up in any of the available save modes.Users who suspect that they have this worm are advised to visit any of the Antivirus links on this site and download a reliable antivirus program.