I have a question regarding the order of SharePoint 2013 SP 1 installation.

My scenario goes as follows:

I installed SharePoint on a server as a single server farm where this server hosts Central Administration and also acts as a Web Front, let's assume this is server A , this server has Oct 2015 CU installed on it without SP 1 (build number is 15.0.4763.1000).

Now I have another server (server B) that i want to join to this current farm and I already have installed SharePoint with SP 1 on this new server, so by running the configuration wizard on server B and after I retrieved the configuration database that I want to connect to, I was given a message saying that SP 1 is not installed on server A. So I started installing SP 1 on Server A, so my question is if I ran the configuration wizard after the installation of SP1 completes on server A, would it apply a new build number ? or there's no need to run the configuration wizard since the build version of Oct 2015 CU is ​15.0.4763.1000 while the SP 1 build version is 15.0.4569.1000 according to the reference below


Please share your ideas with me.

3 Answers 3


that is little strange for me, Because Oct 2015 CU required the SP1 installed on the Server. it is perquisite.

But now, once you installed the SP1, you have to run the PSConfig Wizard in order to upgrade the Schema.

I am confused, may be it wont let you install the SharePoint, because your SharePoint is already on the higher number.

  • That's correct, as we all know SharePoint doesn't downgrade, it is always an upgrade, the strange thing is why did SharePoint ask me for older version of updates when I already have a higher build number on server A, which is Oct 2015 CU, and SP 1 build number is way lower than Oct 2015 CU's build numnber. It does not throw any message indicating that I'm on a higher build number, it accepts and proceeds with the installation.. Nov 13, 2016 at 7:56
  • If it won't ask u then you will be fine. Just install it and run the config wizard
    – Waqas Sarwar MVP
    Nov 13, 2016 at 7:59

After every patch installation you do you have to run SharePoint Configuration Wizard either from the GUI och using PowerShell. Otherwise the Configuration Database isn't updated with the new patch.


You have to run the configuration after every update on each server. If you have 3 servers, than you need to run the configuration wizard after installing the update on the servers on each server.

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