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File Version : 5.00.2195.1620
Description : Alert-Thread Driver 2.0
Copyright : Copyright (C) Microsoft Corp. 1981-1999
Product Version : 5.00.2195.1620
Product Name : Windows (R) 2000 DDK driver
Company Name : Windows (R) 2000 DDK provider
Internal Name : alertdrv.sys
File Size: 4211 byte(s) 4.115 KB
MD5 : cc2a21cf8675e7c6226065d2916b58de
SHA1: 455A29DD9DA9C64C89BF64A2BADC6581C5872C84

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