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File Version : 3, 0, 1, 7
Description : IEEE802.11g WLAN Card NDIS5.0 driver
Copyright : Copyright 2004, Wireless Manufacturer, All Rights Reserved.
Product Version : 3, 0, 1, 7
Product Name : IEEE802.11g WLAN Card
Company Name : Wireless Manufacturer
Internal Name : AR5211
File Size: 345216 byte(s) 337.128 KB
MD5 : 980ee30d7e0a5413144af4064da0d2b1
SHA1: 6BEF0B0B8013B1DFA45559F0A795E9B886E0703D

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