Xp Recovery Console Copy Command Access denied>>?

I need help with XP Recovery Console. When i enter the "Copy Command" with the source and destination it gets blocked i want to copy a .sys file that got erased by my antivirus "Kbdcl.sys" a file for the keyboard I need help on how to allow copy or to erase or disable my user pword so i can access windows and copy and paste the file because my keyboards don't work on start up.??? please help