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File version : V5.30 built by: WinDDK
Description : HP Composite USB Bus Driver (Windows 2000/XP/Vista support functions)
Copyright : Copyright (c) 1997-2012 MCCI Corporation
Product Version : V5.30
Product Name : HP Composite USB Bus Driver
Company Name : MCCI Corporation
Internal name : nwhpwh.sys
File Size: 16456 byte(s) 16.72 KB
MD5 : 9ab6a4067c3f0a17b5c09f76e87cbd7a
SHA1: 92E1EB3005BF1A0B6FC0EF612D3AE7E6EF52823F

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