Windows installed on Oracle VM VirtualBox requires password to be resolved

[Kirky]

Hello friends, I installed a virtual Windows on Oracle VM VirtualBox. I worked on it last night a few times and it worked normally. I left the computer on and went home. When I returned in the morning and opened the virtual Windows, it was asking for a password. I don't have a password on my own computer, nor did I set up a password for the virtual Windows, and it's asking for a password for the first time. What should I do?