Why do not open win7 in VM (installed in mac)

[Cezario]

Goods days

I have the next error with win7 in VM: Failed to open a session for the virtual machine windows 7

Why??

Thanks you so much

[mpack]

We would need to see the complete error message.

[Cezario]

This is the details about error

Unsupported version 6 of data unit 'hda' (instance #0, pass 0xffffffff) (VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION).


Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
ConsoleWrap
Interface:
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

[mpack]

SSM errors usually mean that VirtualBox was updated or the VM moved to another host while a VM was in a saved state. So, discard the saved state (right click VM in manager, "Discard saved state").

[Cezario]

well, if i discard saved state then i have to install again the win7? (in VM)

[socratis]

No, it's not. It's like losing power from your desktop computer. You lose whatever you haven't saved.

If you don't want that to happen, downgrade to the last VirtualBox version that you had, restore the session, shutdown the VM from within the VM, then upgrade VirtualBox.

[Cezario]

Thank you very much for your help to everyone, testing and testing I could start win7.
Discard the saved state and re-start it, enter in safe mode, then close win7 and re-start win7 and start normally.
I can not install the guest adittions but there is no problem with the size of the screen, it looks normal.

[Cezario]

here you can upload images?

[BillG]

Use the tab at the bottom of the window labelled Upload attachment.

Use the Browse button to find and select the file you want to upload, click Add the file to load it, then place it in your post.

[mpack]

If you have additional questions not related to the title question then please ask them in a new topic, after checking the user manual and searching for previous answers.

[Cezario]

there the guest additions appear .. does that mean they are installed?

guest.png (115.52 KiB) Viewed 2067 times

there the guest additions appear .. does that mean they are installed?
The guest additions may not let open win7

[mpack]

does that mean they are installed?

No. That dialog simply shows that the GAs disk is still in the drive. It doesn't prove that you ran anything found on that drive.

If you installed the GAs then there will be a small icon in the notification area of the guest taskbar.

If the GAs are not yet installed then browse to the CD inside the guest and run VBoxGuestAdditions.exe. Afterwards you should remember to eject the CD medium.