Please give me your computer model and the operating system and I’ll help you find the correct driver.
Toshiba Satellite M645-S4114
Windows 7 premium 64bit
HP Elitebook 2640
Windows 7 professional 64bit
In order for you to download the proper drivers for your system, you will need to do it from your system manufacturer website.
For your Toshiba Satellite M645-S4114 you can download the drivers at:
NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
For the HP EliteBook you can try the driver on the following link: