... save time ...
my old Toshiba Quosmio has gone ... new pc HP PROBOOK I7, Win10 Pro updated, new installation Delphi XE5 update2, uniGUI 1.10.0.1472 (same configuration in old Toshiba which worked perfectly )
new pc: error building old project in Debug mode Exception EExternalException in module ntdll.dll at 000xxxxx. External exception C00000262 hours lost ... thanks to iSavaDev https://sageleo.com/article/778/exception-eexternalexception-in-module-ntdll-dll-at-000xxxxx-external-exception-c0000026/
Computer\HKEY_CURRENT_USER\Software\Embarcadero\BDS\16.0\Debugging\Embarcadero Debuggers\Evaluators\comp32x.dll must be -1 not 1
I don't know why, but it solves the problem