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File Version : built by: WinDDK
Description : Atheros Extensible Wireless LAN device driver
Copyright : Copyright (C) 2001-2009 Atheros Communications, Inc.
Product Version :
Product Name : Driver for Atheros CB42/CB43/MB42/MB43 Network Adapter
Company Name : Atheros Communications, Inc.
Internal Name : ATHR.SYS
File Size: 1542656 byte(s) 1.482 MB
MD5 : 0acc06fcf46f64ed4f11e57ee461c1f4
SHA1: 750C6189A106554F01E074D3092B3CAA97B8A6BB

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