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File Version : 1.10.1030.0
Description : ALi PCI to SD/MMC Controller
Copyright : Copyright 2002 ALi Corporation
Product Version : 1.10.1030.0
Product Name : ALi SD/MMC Driver
Company Name : ALi Corporation
Internal Name : ALiSDIF.sys
File Size: 21035 byte(s) 20.555 KB
MD5 : 7a2191c3d3122ca586fd643a9479bccc
SHA1: 6D89102964D3416869F19D6FEA83F53BA5A343F7

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