I am not able to open some of the hidden folders in my windows 7 compatible dell inspiron laptop, which I basically use for internet access and some of the entrainment purpose like to watch movies and sometimes to play games. There is no problem in my machine till the last days, but suddenly after install a graphics application program, the hidden folder are not showing also not able to open them. Those files are very important for me. I am not having such technical idea, so I canít able to rectify this problem. Someone from here having any solution or any other information regarding this problem?