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File Version : V4.50 built by: WinDDK
Description : HUAWEI Mobile Composite Device Driver
Copyright : Copyright (c) 1997-2009 MCCI Corporation
Product Version : V4.50
Product Name : HUAWEI Mobile Composite Device
Company Name : MCCI Corporation
Internal Name : hwtdbus.sys
File Size: 116224 byte(s) 113.512 KB
MD5 : 1c45ad40e9aa136318d00a67d8228322
SHA1: 401CFDBC7659B8E397679BCDAAC84BBA9BB5B462

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