Here's Microsoft's own malware removal program.
Thank you for posting in Microsoft Community.
As I understand you are facing issue with Claro Search in your computer.
claro-search.com is a browser hijacker that overrides existing search engine on the infected computer. Let us try the following methods; I am sure this will help you resolve the issue.
Run Microsoft Safety Scanner.
Microsoft Safety Scanner: http://www.microsoft.com/security/sc...s/default.aspx
Note: The Microsoft Safety Scanner expires 10 days after being downloaded. During this 10 days, it will remove all the virus infected files and folders. I suggest you to create a backup of your data and then Install Microsoft Safety Scanner.
Try uninstalling the Claro toolbar from Programs and Features.
Follow the steps for the same:
a. Press Windows Key + X key and click Control Panel.
b. Open Programs and Features.
c. Search for Claro Toolbar.
d. Select it and click Uninstall and follow the prompt.
e. Once you are done restart the computer.