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File version : 1.2
Description : NDIS 5.0 PCI Internal Cable Modem Driver
Copyright : Copyright 1999-2001, Motorola Incorporated All Rights Reserved.
Product Version : 1.2
Product Name : Motorola PCI Internal Cable Modem SB4000
Company Name : Motorola Incorporated Broadband Communications Sector San Diego, CA
Internal name : Net4000.sys
File Size: 18780 byte(s) 18.348 KB
MD5 : 6a656064ce9939d89d7e08dbce7ead01
SHA1: 4AF1E0345B713E6C7523AC7284A96AC1D61A5A06

Download net4000.sys
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How to Install net4000.sys
Repair Sys ProblemsFixing a corrupted or missing net4000.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.