SQL1072C returned by db2start after applying DB2 10.1 Fixpaks
In Windows environment with UAC features like Windows 2008,Vista and Windows 7,if DB2 10.1 GA and the instance is upgraded to higher Fixpack with 'setup.exe' executed without the "Run as Administrator" option, then db2start may return error SQL1072C.
There will be no problem if the installation of the fix pack is launched from a command window with the setup.exe command and the command window is opened with the "Run as Administrator" option ( right-click the shortcut and select 'Run As Administrator' when the command window is opened) or if the installation of this fix pack is done by right clicking on the "setup.exe" executable and selecting the option "Run as Administrator"
Resolving the problem
Update the Instance using 'db2iupdt'