File version : 220.127.116.11 built by: WinDDK
Description : Intel(R) PRO/Wireless LAN Software
Copyright : Copyright (C) Intel Corporation 2001
Product Version : 18.104.22.168
Product Name : Intel(R) PRO/Wireless 2011B LAN USB Device
Company Name : Intel Corporation
Internal name : CW51USB.SYS
File Size: 39680 byte(s) 38.768 KB
MD5 : 1dbba838d3f29324c8ed12856ba7ac5c
How to Install cw51usb.sys
Repair Sys ProblemsFixing a corrupted or missing cw51usb.sys error is an easy process with a few steps. Open the zip-file you downloaded.Extract the .sys file to a location on your computer. We recommend you to unzip the file to the directory of the program that is requesting the file.
If that doesn't work, you will have to extract the file to your system directory.
By default, this is C:/WINNT/system32/drivers (Windows NT/2000).
or C:/Windows/system32/drivers (Windows XP, Vista, 7).
Make sure overwrite any existing files (but make a backup copy of the original file)
That should be it. Although not necessary you can reboot your computer as well.