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File version :
Description : Broadcom 802.11 Network Adapter wireless driver
Copyright : 1998-2006, Broadcom Corporation All Rights Reserved.
Product Version :
Product Name : Broadcom 802.11 Network Adapter wireless driver
Company Name : Broadcom Corporation
Internal name : bcmwl5.sys
File Size: 610816 byte(s) 596.512 KB
MD5 : e679fe7890c366f3418963e289d273cf
SHA1: 5CF4E20170F2AB570E94B438BD5857969DB61F94

Download wn511b.sys
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How to Install wn511b.sys
Repair Sys ProblemsFixing a corrupted or missing wn511b.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.