Moving smth with mouse, file sticks to it?

Some times when i drag a file in Finder or any linkin Chrome, the object that I'm dragging can be stuck to the mouse.
I can move mouse, sometimes even use it, but objects won't be released from the mouse, the will be attached to the arrow for quite a long time.

I can only release objects from the mouse only mivong to the login window.

How to repair this? Please need help.