Server Manager Invalid Notification task

I have a 2012 R2 server that when Server Manager is opened is showing it has a Notification Task "Post-deployment Configuration". The task is to configure ADCS but when the task is clicked it goes to the configuration screen and then has all the rolls greyed out so it cannot be completed.  The server does have ADCS installed and configured using power shell.  What appears to have happened is that the role was added via the wizard and then removed before the configuration task was done.  I have since installed the role and configured it via powershell but the notification task is still present.  
What I would like to do is to remove the notification task without having to backup the ADCS and then uninstall it and reinstall it as I'm nervous of the impact (its an enterprise subordinate CA).  Any suggestions?

ad-CS-notification.JPG
David_UKAsked:
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Justin DurrantSr. Engineer - Windows Server/VirtualizationCommented:
I think you might be stuck reinstalling the role.. it's not too difficult though

https://support.microsoft.com/en-us/kb/2795825
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David_UKAuthor Commented:
Since its now issuing certificates I thought I was going to have to use a backup and restore strategy.
https://technet.microsoft.com/en-us/library/dn486805.aspx#BKMK_AddCA.
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David_UKAuthor Commented:
Justin was correct I had to uninstall it all and reinstall but since it was already issuing certificates I had to use the method shown in my own comment (backup > reinstall > restore)
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