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File Version : 1.00
Description : QuadEnet PCI Recognizer Driver
Copyright : Copyright IBM 1995
Product Version : 3.50
Product Name : Microsoft Windows NT(TM) Operating System
Company Name : IBM
Internal Name : QUADPCI
File Size: 5472 byte(s) 5.352 KB
MD5 : 7162b89b0f80acb1e0fb3ea4e9093a7b
SHA1: CC64D8B685CAA98D46908A1639C46DE8DB5E3FCE

Download PDNFS.SYS
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How to Install PDNFS.SYS
Repair Sys ProblemsFixing a corrupted or missing PDNFS.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.