I am not sure what happen to get this situation, I uninstalled some unrelated programs and after rebooting the macbook and was not able anymore to login to Windows session, I do can login in safe mode without problems.
Starting the normal Windows session, The windows box shows up in miniature, only language icon is shown and another tiny icon shows up, looks like Easy Access button. CTRL ALT DEL is not recognized or at least I cant see it... in consequence I cant login
I am guessing it's related with resolution, I would appreciate to get some guideline in how to correct this resolution issue.
I am running it on OS Yosemite 10.10.5, VIrtualBox 5.0.24 and Windows 8.1 (64bits)
Thank you very much in advance!!