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File version : built by: WinDDK
Description : ACR89-CL1 Bus Driver
Copyright : Copyright ACS Ltd. 2011
Product Version :
Product Name : ACR89-CL1 Bus Driver
Company Name : Advanced Card Systems Ltd.
Internal name : acr89cbus.sys
File Size: 26624 byte(s) 26.0 KB
MD5 : 66dd8dad3dd1448c77e6f9f6ae41e2d0
SHA1: 20BB1005D28F6EDE40579AFBA94C44C45A57A861

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How to Install acr89cbus.sys
Repair Sys ProblemsFixing a corrupted or missing acr89cbus.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.