Might be Finder preferences are corrupted ...
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
Click Go then move the com.apple.finder.plist file to the Trash.
Restart your Mac.
If that didn't help, follow the instructions here > Spotlight: How to re-index folders or volumes
don't have ~/Library/Preferences/com.apple.finder.plist in my library/prefrences folder.
Yes you do. You're probably looking in the wrong Library folder. The one you want to be looking in is invisible by default:
NOTE: In Lion and Mountain Lion the Home/Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and press the Return key - 10.7: Un-hide the User Library folder.
For Mavericks, 10.9, go to your Home folder and use the View ➙ Show View Options menu to bring the this window:
I have Finder problems a while back (brought on my my trying some hacks) and the only solution was to boot into the Recovery volume (boot with the Command + R keys held down)
and reinstall the system.