Is it caused by a virus?

Hello!

There something wrong about my computer. When I double click any of my local disk, it will open "my documents" window instead of my local disk. Can someone help me?

Yes sounds like a virus.

100% virus!
Try open by explore

One correct answear and one wrong one so far. I agree with the first responise it could be a virus it could also be you have your yoru PC set to open on a single click. Open Explorer>Tools>Folder options>under "CLick items as Follows" make sure that "Double-click" is selected. It would also be a good idea to run a full virus and spyware scan as well to be sure.

Thank you to all.. I fix my registry and everything is back to normal again.