system admin

I got a laptop I have been working with and have been installing software to clean it up a bit(ccleaner avast!, etc.) I only hav a floppy drv and no net access. .I can copy to, but not from. . . .

there is a user password, that the guy I got it from does not know
and I can no longer copy files from floppy(a drive) to anywhere on the pc
I was able too, but now, I dunno
I get a prompt

I cannot open it in the drive

then

how do I change that, I have till wed to return it

and how come I have Dl other stuff, but now cannot?

and I am also looking for something similer to winace if not better. . .any suggestions?
thanks. . . .