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File Version : 6.00.6000.2
Description : A4Tech Mouse Filter Driver
Copyright : Copyright (C) A4Tech Co.,Ltd. 2001-2007
Product Version : 6.00.6000.2
Product Name : A4Tech Mouse Driver
Company Name : A4Tech Co.,Ltd.
Internal Name : Amfilter.sys
File Size: 10752 byte(s) 10.512 KB
MD5 : 72e34f65e707435281f8cb3aba58f573
SHA1: 2B2200E2A8643E9A1385E2889BDE487ED07B0D6E

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