Not to hate, but the fact that you started with 'labtop' has me worried. You can avoid confusion (or, ridicule) by saying notebook. ;-p
That said, I'm assuming that you have documents stored on your usb drive, not programs? Also, you are likely trying to 'open' the documents, not 'boot' them.
It sounds like your install of MS Word may have issues. Do you had administrative rights on the machine? Can you run 'add/remove programs' from the control panel? If so, try to add/remove MS Office, then choose 'repair' if prompted, and see if that process succeeds.