Correction: not 'I can' actualize' but ' I cannot actualize '
I've got Lightroom 6.0 as a stand alone programm. It is possible to update from 6.0 to 6.4? In LR 6.0 I cannot actualize with 'help/actualize". Thanks for help!
LR 6.0 deinstalled then installed - it was successfull!