when did it start acting up? can you restore before that time?
maybe to before that frame file went missing??

also maybe check into -
control panel/folder options/view/show all hidden files and folders

to make sure you can see all that is there

when done hide them again

do you have a profile set up for your kids and others so they only can have limited access? less chance of them messing things up. you would be the admin/profile {full access}
control panel/users