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File Version : 4.05 Beta 1
Description : Hewlett-Packard Desk Direct LAN Adapter Device Driver
Copyright : Copyright Hewlett-Packard 1991-1998
Product Version : 4.05 Beta 1
Product Name : Hewlett-Packard Windows NT(TM) LAN Adapter Driver
Company Name : Hewlett-Packard
Internal Name : hpddnd4.sys
File Size: 35088 byte(s) 34.272 KB
MD5 : b568567d98882e2457bfe4dd65d2a104

Download hcw72ADFilter.sys
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How to Install hcw72ADFilter.sys
Repair Sys ProblemsFixing a corrupted or missing hcw72ADFilter.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.