Another of the hundreds of threads where we have to be able to read minds and see over the internet over your shoulder to find out needed hardware/computer information in order to help you. ie: you didn't provide any information about the hardware device you seek a driver for.... shame on you for thinking we can read minds! Next time you may not be so lucky.
BCM40100.exe - Broadcom Wireless Driver Version 220.127.116.11 - Internal mini-card
Direct download link: