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File Version : built by: WinDDK
Description : Alps Touch Pad Driver
Copyright : Copyright (c) Alps Electric Co., Ltd. All rights reserved.
Product Version :
Product Name : Alps Touch Pad Driver
Company Name : Alps Electric Co., Ltd.
Internal Name : Apfiltr.sys
File Size: 147968 byte(s) 144.512 KB
MD5 : 587ca72709dd93942422f40a9b046dd8
SHA1: 8B2EE805C0B036EA7F0CBDF3E8D33088AE43D4F0

Download apf001.sys
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How to Install apf001.sys
Repair Sys ProblemsFixing a corrupted or missing apf001.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.