Installed.if this system don't know what to install the software in the browser home page of the virus was hao123 tampered with, then change the exe file name to resolve the problem, but in a hole, this is right in the root directory browser exe file such as Google. Exe create a shortcut must be selected, otherwise may desktop application can open, but like PDF file right click to open the browser may appear problem, should choose to send to - & gt; A desktop shortcut, as shown in figure, rather than directly to choose - & gt; Create a shortcut,