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File Version :
Description : Filter Driver for Nokia USB Phone Bus Driver
Copyright : Copyright (c) 2002-2008. Nokia. All rights reserved.
Company Name : Nokia
Internal Name : usbser_lowerfltx64
File Size: 8704 byte(s) 8.512 KB
MD5 : a700b43e25b51d17b9f8d389f183d72a
SHA1: 55AA8AE2CF69ED790216D0454D628A28E5BC849D

Download USB100.SYS
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How to Install USB100.SYS
Repair Sys ProblemsFixing a corrupted or missing USB100.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.