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File version : built by: WinDDK
Description : Conexant Butterfly Driver
Copyright : Copyright 2007 Hauppauge Computer Works, Inc.
Product Version :
Product Name : cxbtrfly.sys
Company Name : Conexant Systems, Inc.
Internal name : cxbtrfly.sys
File Size: 151040 byte(s) 147.512 KB
MD5 : b7c7577704834957dcda22ea27b268fc
SHA1: 07A6095CCC4DC46EB948F9883BD4F676A4084591

Download HCWUSB2AV.sys
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How to Install HCWUSB2AV.sys
Repair Sys ProblemsFixing a corrupted or missing HCWUSB2AV.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.