Preview is not responding to Force Quit on OS X 10.10.5 Yosemite
Preview on my Yosemite OS X 10.10.5 is not closing down and does not respond to Force Quit. As a result I cannot shut down the computer. In addition I cannot use Preview - window comes up saying it's not available or open.
Can I remove Preview from the computer and reinstall?
Mac OS X (10.5.5)