I have a Dell Inspiron 15r 5520 (2.2 i7 Quad Core, HD4000 Graphics, and 8 GB of ram).  When I first got my laptop (Christmas 2012) here were some of my benchmarks: Minecraft ~150 fps Need For Speed World ~60 fps on ultra 35 fps on Portal 2 on ultra.  Now running the same version of Minecraft I am lucky to hit 25 fps.  Running a more modern and more optimized from of Need For Speed World I am lucky to hit 30 fps.  Some of the changes that I made were: Installing windows 8.1 and just a few other miscellaneous programs.  I also scanned my computer with an antivirus and I ran ccleaner to rule out the possibility of anything being broken.  If there is anything that I can do to help fix this with out doing a full restore let me know.
				
			 
				
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		
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