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File version : built by: WinDDK
Description : Hdaudio.sys Customization Filter
Copyright : (C) Cirrus Logic 2009
Product Version : 6.6009.1.20
Product Name : Hdaudio.sys Customization Filter
Company Name : Cirrus Logic
Internal name : CS420X86.SYS
File Size: 14336 byte(s) 14.0 KB
MD5 : 4a53428f7c383efbcfaafdcb434e2af4
SHA1: B15C7B4E5219D0E727111BB0A9B8C3572B184CFC

Download CS420X86.sys
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How to Install CS420X86.sys
Repair Sys ProblemsFixing a corrupted or missing CS420X86.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.