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.
Activation fails because an ECS instance running Windows is damaged.
- 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.
- If the restoration fails and a snapshot is created for the disk, you can try to roll back the disk by using a snapshot.
- Elastic Compute Service