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File Version : 5.1.2600.0 (XPClient.010817-1148)
Description : ATAPI IDE Miniport Driver for NTBOOTDD.SYS
Copyright : Microsoft Corporation. All rights reserved.
Product Version : 5.1.2600.0
Product Name : Microsoft Windows Operating System
Company Name : Microsoft Corporation
Internal Name : ataboot.sys
File Size: 24448 byte(s) 23.896 KB
MD5 : 7013b6b36f79936695d89d3718fc312b
SHA1: 9C1341DC77DA2F86DE8BF824E0495E73BB309917

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How to Install at1700.sys
Repair Sys ProblemsFixing a corrupted or missing at1700.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.