i have a HP Pavilion a1267c computer and when i try to view system info a box pops out saying C:\WINDOWS\system32\rundll32.exe Application not found and when i try 2 open a program like paint or calculator and other programs a box pops out saying in bolt Open With and then it says "choose the program you want to use to open this file:" "File: calc.exe" then then it has programs.if u need more details let me know im not really a computer dude so help me outssssss