Whenever Sharepoint is updated, psconfig must be run to finish the installation of the update. See the SBS Blog here – http://blogs.technet.com/b/sbs/archive/2011/05/24/you-must-manually-run-psconfig-after-installing-sharepoint-2010-patches.aspx
To run pscoonfig, perform the following:
- Open up a Command Prompt as Administrator
- Change directory to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN
- Run PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures
Other possible issues after installing Sharepoint Foundation 2010 SP1, or other updates can be found here – http://blogs.technet.com/b/sbs/archive/2011/07/06/potential-issues-after-installing-sharepoint-foundation-2010-sp1.aspx