Fix the request to add or remove features failed 0x00400d

In this article, we shall discuss the steps to “Fix the request to add or remove features failed 0x00400d”. The error code “0x00400d” shows that there was an issue adding or removing features during an installation or upgrade on Windows Server. Please see How to install DHCP role on Windows Server 2019, Azure CI/CD: Configuring Email Notifications in Azure DevOps, and how to Fix Windows Security Blank Screen Issue.

Below is a related YouTube video for more information.

Also, see how to Fix the request to add or remove features on the specified server failed. Here is a guide on “How to backup and restore a Windows DHCP Server via the DHCP Manager and PowerShell“. Learn how to fix “KB5034439 Windows Update Error: Resize WinRE Partition“.

Reason for this error ‘request to add or remove features failed 0x00400d”?

There was a pending Update that required a restart. Restarting the installation process can resolve the issue after resolving the root cause.

This error message indicates that the installation of the DHCP Server role requires a server restart.

You can try restarting the server and then attempting to install the DHCP Server Role again.

As you can see below, the installation succeeded. See the “Fix the request to add or remove features on the specified server failed“, and how to configure “WDS and DHCP Deployment Scenarios: Configure DHCP Options 60, 66, and 67“

I hope you found this article on how to “Fix the request to add or remove features failed 0x00400d” very useful. Please feel free to leave a comment below.