Finally her VirtualBox Oracle released version 5.2.22 which works properly with Windows 1809 or otherwise October 2018 version.
With the release of information 1809 τον Οκτώβριο των Windows 10 το δωρεάν πρόγραμμα VirtualBox της Oracle δεν μπορούσε να εκκινήσει τις εικονικές μηχανές, είτε αυτές ήταν παλιές, είτε αν φτιάχνατε καινούργιες.
IGuRu had it points out in a relevant article its from the first moment. But it took a whole month for Oracle to release a working version. So version 5.2.22 of VirtualBox is no longer a problem, so Windows 1809 users will need to upgrade.
Logically, if you run your VB, it will notify you of the existence of 5.2.22, so proceed to download and install it. If he does not notify you then download it from here.
The strange thing is that in the meantime the Oracle people released a version, 5.2, which previously solved problems of applications but it had no effect on the latest Windows 1809. It seems that this version was almost ready to be introduced and at the same time seeing that Windows 1809 had a failed appearance, with a bunch of problems that caused it to be recalled, so the Oracle engineers moved on at its release, waiting for Windows to release a pre-release version.
However, those who had downloaded 1809 from the beginning waited a month to see the virtual machines work again.