programs keep closing

i installed rocketdock,metro7,nexus,nexstart,now rainmeter they all had the same problem worked for 10-15 mins then closed tryed patches no good sometimes said forse close by another program the windows explorer keeps not responding looked on line one place said missing dll file looked on rainmeter log wp7/panels show\meter hide\meter not found sumthing about a dump not ther why dose this keep hapening pls help!!!!!!!!!!!!!!!!!!!!!!!!!!