Computer hangs everytime I open up preview.

My Macbook Pro (mid 2012) hangs everytime I open up Preview. The only way to resolve it is to use force shutdown, Even the "three finger salute" force quit window dosen't appear when I press it. Problem started to appear when i accidentally opened quite a large number of image files ( >300) on preview. Currently using OS X 10.9.2

Do a backup.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Caches/com.apple.Preview. Move the caches to your desktop.
Open the application and test. If it works okay, delete the caches from the desktop.
If the application is the same, return the caches to where you got it from, overwriting the newer one.
Thanks to leonie for some information contained in this.
You might need to redo the View settings after an update.

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Computer hangs everytime I open up preview.

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