In this case, you want the Drop to root shell prompt option so press the Down arrow to get to that option, and then press Enter to select it.

After you select recovery mode and wait for all the boot-up processes to finish, you’ll be presented with a few options.

From the boot menu, select recovery mode, which is usually the second boot option.

Right after start target virtual machine (click inside virtual machine window) and press Shift key repeatedly until you will see the grub menu.

Go to virtual machine’s ** Configuration-> Hardware Tab -> Boot Order.

If you need to reset forgotten password for a EFI/UEFI-enable virtual machine, please use the Enterprise edition of PCUnlocker which supports both 32-bit UEFI and 64-bit UEFI.I want to reset my password in Ubuntu virtual machine. In addition, you can also use PCUnlocker to reset domain user password for Windows Server 2016/2012/2008/2003/2000 domain controller running inside VirtualBox.

Restart the virtual machine and set it to boot from hard drive now, you can then log in to your Windows account with a blank password.

Select a user account, then click on the Reset Password button to remove your forgotten password. Simply select your Windows SAM registry hive, the program will display a list of Windows user accounts. It will load the system files inside the ISO image and launch the PCUnlocker utility. In my case I press the c key to let the virtual machine to boot from CD-ROM. It will display all available boot devices as follow.

When the Oracle VM VirtualBox logo appears, press F12. option to point to the pcunlocker.iso image file. At the right panel, click the CD-ROM icon and select the Choose a virtual CD/DVD disk file. Go to the Storage tab, choose the CD-ROM device in the storage tree. On the main screen of VirtualBox, select your Windows virtual machine and right-click on it. Click here to download and save the PCUnlocker self-extracting Zip file to a folder on your hard drive, then extract the ISO image file: pcunlocker.iso from it.The password resetting procedure can be divided into two steps. Here I'll show you an easy way to reset Windows 10/8/7/Vista/XP password for virtual machines running inside VirtualBox. There are chances you forgot the Windows login password for your VirtualBox virtual machine.

VirtualBox is virtualization software like VMware, which allows everyone to run one or more virtual machines on their computer.

Forgot password ubuntu virtualbox