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:System activation fails due to damage to Windows system components

Last Updated:Dec 29, 2020

Problem description

After Windows starts, the desktop background is black, and the message "[This copy of Windows is not genuine] activation failed" appears in the lower right corner. Follow the steps in activate a Windows instance in a VPC by using KMS domain names. When you manually activate a Windows instance, the following error occurs.

On computers running non-core versions of Microsoft Windows, run slui.exe 0x2a 0x80070003 to display error text.
Error: 0x800700003


Activation fails because an ECS instance running Windows is damaged.


  1. Log on to the ECS instance of the Windows system, enter the CMD command window, and run the following command to fix the Windows component.
    sfc /scannow
  2. If the restoration fails and a snapshot is created for the disk, you can try to roll back the disk by using a snapshot.

Application scope

  • Elastic Compute Service