InstantForum.NET v2.9.0SQLServerCentralhttp://www.sqlservercentral.com/Forums/notifications@sqlservercentral.comSat, 25 May 2013 17:35:10 GMT20http://www.sqlservercentral.com/Forums/Topic1408140-146-1.aspxCheck out this link, it's almost a replica of what you're facing. I hope this helps!!!http://manage-sqlserver.blogspot.in/2011/06/unable-to-install-sp4-due-to-missing.htmlRegards,FaisalTue, 22 Jan 2013 09:56:15 GMTfaisalfarouqihttp://www.sqlservercentral.com/Forums/Topic1408140-146-1.aspxI am trying to upgrade SQL 2005 to SP4 from SP2. Few SQL components were successful. version numbers are belowProducts Detected Language Level Patch Level Platform EditionSetup Support Files ENU 9.4.5000 x86 Reporting Services (MSSQLSERVER) ENU SP2 9.00.3282.00 x86 ENTERPRISESQL Server Native Client ENU 9.00.5000.00 x86 Client Components ENU SP2 9.2.3282 x86 ENTERPRISESQLXML4 ENU 9.00.5000.00 x86 Backward Compatibility ENU 8.05.2312 x86 I am trying to upgrade report server and reportserver database is residing on another SQL instance which is again on SQL 2005 SP2.During installation i found errors and Issues related to missing installation files which now have already been resolved.Then i tried with another run and it failed again. After reading few blogs and technet articles, i have changed few registry settings to enable uninstallation of SP2 but of no use as upgrade process is now failing somewhere else.I have attached installation logs for your reference. Any help is appreciated as i am finding myself stuck. Wed, 16 Jan 2013 22:13:39 GMTAnam Verma