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File Version : 12.0300.0030
Description : HSP Modem Serial Device Driver
Copyright : Copyright Conexant Systems, Inc. 2003
Product Version : 12.0300.0030
Product Name : HSP Modem Serial Device
Company Name : Conexant Systems, Inc.
Internal Name : Ptserial.sys
File Size: 362639 byte(s) 354.143 KB
MD5 : 7269af0bf59f0c2923df3d3be3cd35eb
SHA1: 1FDE410E5902D95E026DB9FC8B89C80411B81F14

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