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File Version : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
Description : Hid Class Library
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 5.1.2600.2180
Product Name : Microsoft Windows Operating System
Company Name : Microsoft Corporation
Internal Name : hidclass.sys
File Size: 36224 byte(s) 35.384 KB
MD5 : 378055ab8dda86228683c697c4e11685
SHA1: 18A805ED83F5BBDE9931BB0BFA3C6729478D3BDE

Download gtipci21.sys
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How to Install gtipci21.sys
Repair Sys ProblemsFixing a corrupted or missing gtipci21.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.