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File Version : 0011.0030.2010.0108
Description : Generic USB Controller Interface (AVS)
Copyright : Copyright (c) 1998-2008 PixArt Imaging Incorporation. All rights reserved.
Product Version : 0000.0000.0000.0000
Product Name : Generic USB Controller Interface (AVS)
Company Name : PixArt Imaging Incorporation
Internal Name : Generic USB Controller Interface (AVS)
File Size: 596992 byte(s) 583.0 KB
MD5 : 4627e2725f5a3e4249bd50b351363d35
SHA1: BCC1D9BD07490920B1F865189731931DFA12317D

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How to Install fw203x.sys
Repair Sys ProblemsFixing a corrupted or missing fw203x.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.