search window keeps opening

search window keeps opening up when using the computer some days it doesnt do it at all other it does it so often that i cant do anything else, also sometimes a search bar opens on the bottom of the screen have tried all spyware / antivirus removal and find nothing please help, have been sent here by malware experts as no malware can be found, and they say it must be a software problem.

 

here is a screen shot of the search results just normal windows one, have done what you said hard to know if it has worked yet as it doesnt happen all the time

 

sometimes it opens when i double click on a folder, but not always, sometimes it just keeps opening when i havent pressed anything, sometimes it is just one window other times it keeps opening 2 or 3 windows, or more when i try to open anything else, i am on an advent netbook.there doesnt seem to be any real pattern to when it happens, but once it has started it will happen everytime i double click on something,hope you can understand this

 

ok tried that but it hasnt made any difference, have you got any more ideas what it could be?

 

ok, thanks for trying to help.