Customer: "I'm having trouble installing Microsoft Word."
Tech Support: "Tell me what you've done."
Customer: "I typed A:SETUP"
Tech Support: "Ma'am, remove the disk and tell me what it says."
Customer: "It says [PC manufacturer] Restore and Recovery disk"
Tech Support: "Insert the MS Word setup disk."
Customer: "What?"
Tech Support: "Did you buy MS word?"
Customer: "No..."