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File Version : built by: WinDDK
Description : NVIDIA nForce(TM) Sata Performance Driver
Copyright : Copyright(C) 2001-2007 NVIDIA Corporation
Product Version :
Product Name : NVIDIA nForce(TM) SATA Driver
Company Name : NVIDIA Corporation
Internal Name : NVIDIA nForce(TM) SATA Driver
File Size: 100864 byte(s) 98.512 KB
MD5 : 012d30496eae224cca23ede4e7a960be
SHA1: A5582AC41BC539F1D2B0BB900A699EDC108DB6E6

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