Error MaxWebConfigFileSizeInKB when installing Exchange Server 2013 Cumulative Update 10

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During Exchange Server 2013 Cumulative Update 10 in a new server the administrator may get an error related to MaxWebConfigFileSizeInKB during the Readiness Checks.

Solution


In the following page is a brand new installation of Exchange Server 2013 Cumulative Update 10 on top of Windows Server 2012 R2.

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The issue may happen when the administrator run the Exchange Server 2013 CU10 installation process without running the pre-requisites. In order to solve this issue, we need to run the following cmdlet using PowerShell, and after completing the installation process we need to restart the server after that.

Install-WindowsFeature AS-HTTP-Activation, Desktop-Experience, NET-Framework-45-Features, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, Web-Mgmt-Console, WAS-Process-Model, Web-Asp-Net45, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Dir-Browsing, Web-Dyn-Compression, Web-Http-Errors, Web-Http-Logging, Web-Http-Redirect, Web-Http-Tracing, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-Mgmt-Console, Web-Mgmt-Service, Web-Net-Ext45, Web-Request-Monitor, Web-Server, Web-Stat-Compression, Web-Static-Content, Web-Windows-Auth, Web-WMI, Windows-Identity-Foundation

The second step is to install Microsoft Unified Communications Managed API 4.0, Core Runtime 64-bit using the following link http:/go.microsoft.com/fwlink/?LinkID=260990

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Written by Anderson Patricio

Anderson Patricio

Anderson Patricio is a Canadian MVP in Cloud and Datacenter Management, and Office Server and Services, besides the Microsoft Award he also holds a Solutions Master (MCSM) in Exchange and several other certifications. Anderson has been contributing to the Microsoft Community with articles, tutorials, blog posts, twitter, forums and book reviews. He is a regular contributor here at ITPROCentral.com, MSExchange.org, Techgenix.com and Anderson Patricio.org (Portuguese).

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