OK i got Windows7 and it won't let me delete some files and it won't let me change permissions the only account on the computer is mine and i am the administrator so why won't it let me change the setting or delete what ever I want i am not trying to delete any windows files or anything that it would think is apart of windows i installed steam and when it goes to update it gives a error that it deleted steam.exe but it is still there. i hit ok and it closes so i went in to program files where it installed and tried to delete it manually and that is when i found out i can't, i tried to change the permission and it won't let me i check the full access and hit apply and it unchecked all the boxes i am really pissed off so if some one can explain to me how to fix it that would be great thanks