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File Version : 4.0043
Description : Defragmentation Support Driver
Copyright : Copyright Raxco Software, Inc. 1998-2003
Product Version : V4.0.0.43
Product Name : PerfectDisk Driver
Company Name : Raxco Software, Inc.
Internal Name : defrag32.sys
File Size: 54424 byte(s) 53.152 KB
MD5 : f55c772d965f11176fb0d642b06ea0b3
SHA1: FCC5B974CF441C1533777EEC2CB754B9C4726426

Download DE528.sys
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How to Install DE528.sys
Repair Sys ProblemsFixing a corrupted or missing DE528.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.