No BIOS access, VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)

I use Oracle VM VirtualBox Manager. I attempted to run Windows there. I got the error:

VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED).

Result Code: NS_ERROR_FAILURE (0x80004005)

Component: ConsoleWrap

Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

The solutions which I fount in here: 1. VT-x is disabled in the BIOS for both all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED) 2. Instaling virtual machine (Ubuntu) to run linux on a windows 10 machine. Getting strange errors 3. VT-x is disabled in the BIOS for all CPU modes (VERR_VMX_MSR_ALL_VMX_DISABLED)

One thing which I cannot try is to enable visualization in BIOS setting. This is because I set up a password to access BIOS and now I don't remember what the password is.

Do you know what else can I try make the VM working for me?