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File Version : 6.0.6000.16386 built by: WinDDK
Description : Serial Device Driver
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 6.0.6000.16386
Product Name : Windows (R) Codename Longhorn DDK driver
Company Name : Windows (R) Codename Longhorn DDK provider
Internal Name : serial.sys
File Size: 63488 byte(s) 62.0 KB
MD5 : 3712070147f8fa20c15beedc8b4aec50
SHA1: F09BFF69622AABE01A0026889E3C30C4D52C8F30

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