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File version : 2. 0. 6. 7
Description : USB Modem/Serial Device Driver
Copyright : Copyright 2001-2009
Product Version : 2. 0. 6. 7
Product Name : QUALCOMM Incorporated USB Modem/Serial Device Driver
Company Name : QUALCOMM Incorporated
Internal name : qcusbser
File Size: 120960 byte(s) 118.128 KB
MD5 : 006c1d1587d16947cbecd1ad6effa94b
SHA1: A762BD189A4180E36B40C39C972BE347B2C6681F

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