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File Version : 5.397.0823.2001
Description : NDIS 4.0 driver
Copyright : 1994-2001, Realtek Semiconductor Corp. All Rights Reserved.
Product Version : 5.397.0823.2001
Product Name : Realtek RTL8139 Family Based Fast Ethernet Adapter
Company Name : Realtek Semiconductor Corporation
Internal Name : RTL8139.SYS
File Size: 37376 byte(s) 36.512 KB
MD5 : 04d88d96944d050ab44cb44796122bfa
SHA1: 1F6E5388E0C62C0D49A5168D7E7FD7D52DBF1B38

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