go to your startbar go to run type in msconfig goto your startup what
programs are trying to start are there any on the list that you have removed
that done if the problem still persists try to find and fix errors (go to my
computer right click your C drive go to properties,go to tools on dialog box
that opens click check now you will get a pop up check both automaticly fix
file system errors,Scan for and attempt recovery of bad sectors with all that
if nothing else it should help and if it does not you can reply back with
more information on your problem