Hi recently updgrade my installation SP 2010 with SP1 installed . Now when running my PS config either manuallyin poweshell or by running wizard , errors at last step of upgrading product with error that 27 percent is completed and to see the logs ..PSCDiagnostics_9_18_2014_14_50_31_616_907950047.log
Run the PS Config wizard manually. When it starts you will notice that the SPTimer service has stopped.. Restart it and it will complete.. note – keep an eye on the timer job service on the server during the entire process