Having finished the installation, you can check the issues in the Windows SBS Console by clicking on View installation issues. Most of the installations I have carried out have shown at least one issue, ranging from network errors to update failures.
Click on the link View installation issues to see any issues.
You need to take the action recommended or other appropriate action. Click on How do I fix this issue to get advice on the specific issue and how to fix it. Given that errors are unexpected, I can't script all the answers here; however, there is one I have frequently seen, about updates that did not run.
If the issue, as shown in the following screenshot, is One or more updates cannot be installed then the best option is to run Windows Update. You can find this by typing Windows Update into the Start menu.
You should see that your system is waiting to install updates as shown in the following screenshot and then, you simply need to click...