Issue found when attempting to modify the LiveUpdate frequency in the Symantec Protection Engine (SPE) 7.9 Console. The change to the LiveUpdate frequency from 2 hours to a different frequency did not modify the .XML files as expected.
The suggested workaround below details the following commands to set the LiveUpdate frequency to 24 hours:
C:\Program Files\Symantec\Scan Engine\
XMLModifier.exe -s /liveupdate/Schedule/Interval/@value 86400 liveupdate.xml
The solution is expected to be released in next CRT release.