just go to run type gpedit.msc goto administrative template>expand system on right side goto removable disk and disable the group policy related to write access of removable disk hope this will work but i seriously doubt it will work if you are using a domain computer.
1) Most office pcs will b under domain , so it wont b possible , lack of permission error
2) Admin prevented copying of files to pendrive or external media for a Purpose "security " , why u wana Bypass protocol's?
3) Yes like ^^ said with LIve DVD/like usb OS u can copy if it is not blocked (Bios setting and password protected bios)