Microsoft Exchange 2010 OWA not able to Open.

Hello Friends,

Today i will show you how to resolve Outlook Web Access isses in Microsoft Exchange 2010 after installing Updates / SP upgrade.

After Installing Service Pack of Update OWA stops working with below error.

Error :

Microsoft.Exchange.Clients.Owa.Core.OwaThemeManagerInitializationException
Exception message: Couldn’t find a base theme (folder name=base)

Solution :

1) Open Microsoft Exchange Power Shell
2) Go to "C:\Program Files\Microsoft\Exchange Server\V14\Bin"
3) run CAS Powershell Script by using this command "./UpdateCas.ps1"
4) Restart IIS

And it's Done!!!!

hope this solution helps you..please write any suggetions or correct me if any correction needed.

Have a Good Day!!!!