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Why can’t I update Windows on my Amazon EC2 Windows instance?

SHUBHAM SINGH . Sep 19, 2023

A:

You may encounter difficulties updating Windows on your Amazon EC2 Windows instance due to potential connectivity issues preventing access to the Microsoft KMS server, leading to Windows activation errors. You can troubleshoot network and firewall configurations to resolve this problem.

Mar 01, 2024

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A:

Check if your instances is able to reach all Microsoft Update URLs from the Microsoft website. If instances cannot reach the URL, check the following conditions: instances must always have Internet connectivity. Your instance's security group and network access control list (network ACL) must enable traffic on outbound ports 80 and 443. Check any firewall or proxy configuration you have applied to the instance. For more information, see Issues related to HTTP/Proxy on the Microsoft website.

Sep 19, 2023

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