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File Version : v6.00.82.0
Description : Adaptec HostRAID for SATA
Copyright : Copyright Adaptec, Inc. 2005
Product Version : Adaptec HostRAID for SATA v6.00.82.0
Product Name : Adaptec HostRAID for SATA
Company Name : Adaptec, Inc.
Internal Name : v6.00.82.0 I308
File Size: 216064 byte(s) 211.0 KB
MD5 : 8be6be45f2f65f1adb6f9bc9eca7565e
SHA1: 6D8A70CCE0A18B8F60BD2B2771B961BE2D2B39BB

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