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File Version :
Description : PS/2 Mouse Filter Driver (For Windows 2000 Only)
Copyright : Copyright (C) Primax Electronics Ltd. 1999-2000
Product Version :
Product Name : Primax Mouse
Company Name : Primax Electronics Ltd.
Internal Name : Pelps2m.sys
File Size: 19818 byte(s) 19.362 KB
MD5 : 859b4b99dc669340434366a7351606a0
SHA1: 2994E362078F61D518DE0811A3EF036FF3D54254

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