"An item with the same key has already been added" error when you open a list in VAMT 2.0 on a Windows 7-based computer


KB Article: http://support.microsoft.com/kb/2383895

INTRODUCTION

When you open a list (.cil) in Volume Activation Management Tool (VAMT) 2.0 on a Windows 7-based computer, you may receive the following error message:

An item with the same key has already been added.

Comments (2)

  1. lantern2012 says:

    when i select all of the keys, and then refresh product key data online, I get a “entry with the same key already exists” error; how can I fix it? Thank you!

    Windows Server 2012 R2
    Volume Activation Management Tool 6.3.9600.0
    SQL Server 2014 Express x64

  2. walter shebib says:

    i am using windows disc to boot my pc cause window 7 64 bit does not see a plug and play high speed 10 port usb 2.0 hub. made by vantec