After truncating the Evt_NS_Client_Config_Generation table, I could not get much space.oonly 20MB space is avialable
I could find these errors in the log viewer
unable to generate policy for item....
&&&&&
Unable to build the client configuration XML for advertisement with guid {4b936f08-fbd0-4814-8963-4829f0e69388}. Reason: Did not get a row for Software Delivery Advertisement ""windowsserver2003.windowsxp-kb2286198-x64-enu.exe for MS10-025, MS10-046, MS10-049, MS10-051, MS10-052, MS10-053, MS10-054, MS10-055, MS10-056, MS10-060"", Guid = {4b936f08-fbd0-4814-8963-4829f0e69388} from the SWD tables..","Altiris.PatchManagementCore.Policies.SoftwareUpdateAdvertisement.OnBuildClientConfigXml2","w3wp","19"