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File Version : 5.1.2600.0 (XPClient.010817-1148)
Description : Generic PCI IDE Bus Driver
Copyright : (C) Microsoft Corporation. All rights reserved.
Product Version : 5.1.2600.0
Product Name : Microsoft(R) Windows(R) Operating System
Company Name : Microsoft Corporation
Internal Name : pciide.sys
File Size: 3328 byte(s) 3.256 KB
MD5 : a4d41f0279f405d6f5c19465aad82834
SHA1: 73E0624A70F2F0A64CCCECD8E804E3C137F5B03E

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