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File version : 3.37.21163
Description : Hauppauge WDM Driver for Bt848, Bt878
Copyright : Copyright (c) 1998-2003 Hauppauge Computer Works
Product Version : 3.37.21163
Product Name : WinTV WDM Driver
Company Name : Hauppauge Computer Works
Internal name : hcwbt8xx.sys
File Size: 436292 byte(s) 426.68 KB
MD5 : cd3686e761af1760c79048bd9954f2f9
SHA1: 417B7737E2CCDBBA988363A09578E58F1E689D4C

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How to Install HCWBT8XX.SYS
Repair Sys ProblemsFixing a corrupted or missing HCWBT8XX.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.