This is the error
+ 01-16-2016,20:50:47 : The install failed with an unexpected error:The given path's format is not supported.
+ 01-16-2016,20:50:47 : at System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath) at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath) at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList) at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath) at System.IO.Directory.CreateDirectory(String path, DirectorySecurity directorySecurity) at Symantec.BackupExec.BeSeqDlgs.DlgValidationSummary.CreateSummary() at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart()
+ 01-16-2016,20:50:47 : If this install is being run from a network share, copying the media locally and retrying the install may resolve this issue.
+ 01-16-2016,20:50:47 : ERROR: Installation failed with error -532459699. GetLastError = :0
Are you running the installation from a network share? If so, copy the the installation DVD to a local disk and install it from there.
Also, if you are running a RDP session for the install, logon to the media server and run the the install. Do not use a RDP session.