Exchange 2010 Service Pack 2 Fails ‘Readiness Checks’

KB ID 0000720

Problem

When attempting to install Service Pack 2 on an Exchange 2010 Server the ‘Readiness Checks’ fail for the Client Access Role,

Client Access Role Prerequisites
Failed
Error:
The 'IIS 6 WMI Compatibility' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=0a71c4f6-68de-40f7-94cf-74b73cbda37b
Error:
The 'Client Certificate Mapping Authentication' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'Directory Browsing' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'HTTP Errors' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'HTTP Logging' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'HTTP Redirection' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'Tracing' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'Request Monitor' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236
Error:
The 'Static Content' component is required. Install the component via Server Manager.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=41a25c5e-0d39-4e55-a1f0-7be885982236

Solution

There are simply more server roles now required for an Exchange Server that has the Client Access Server role.

You can bypass the error by running the update with the ‘/Mode:Upgrade /InstallWindowsComponents’ switch on the end of it like so;

Adding required CAS Roles for Exchange SP2 Manually

I prefer to do things myself, so you can add all the roles from PowerShell.

1. All Programs > Accessories > Windows PowerShell > execute the following command;

2. Then execute the following command;

3. Then re-run the SP2 setup.

Related Articles, References, Credits, or External Links

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