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File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Description : Microsoft Tunnel Interface Driver
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 6.1.7600.16385
Product Name : Microsoft Windows Operating System
Company Name : Microsoft Corporation
Internal Name : tunnel.sys
File Size: 108544 byte(s) 106.0 KB
MD5 : 3e461d890a97f9d4c168f5fda36e1d00
SHA1: 2CF927D2646E3B7586CAEC02170DECEC102504E4

Download tgiul40.sys
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How to Install tgiul40.sys
Repair Sys ProblemsFixing a corrupted or missing tgiul40.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.