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VirtualBox for Mac

VirtualBox 4.1.20 Build 80170

  -  96.64 MB  -  Open Source

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of VirtualBox 4.1.20 Build 80170.


For those interested in downloading the most recent release of VirtualBox for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • VirtualBox 4.1.20 Build 80170 Screenshots

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    VirtualBox 4.1.20 Build 80170 Screenshot 1
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  • VirtualBox 4.1.20 Build 80170 Screenshot 3
  • VirtualBox 4.1.20 Build 80170 Screenshot 4

What's new in this version:

- VMM: fixed a crash under rare circumstances for VMs running without hardware virtualization
- VMM: fixed a code analysis bug for certain displacement instructions for VMs running without hardware virtualization
- VMM: fixed an interpretion bug for TPR read instructions under rare conditions (AMD-V only)
- Snapshots: fixed a crash when restoring an old snapshot when powering off a VM (bugs #9604, #10491)
- VBoxSVC: be more tolerant against environment variables with strange encodings (bug #8780)
- VGA: fixed wrong access check which might cause a crash under certain conditions
- NAT: final fix for crashes under rare conditions (bug #10513)
- Virtio-net: fixed the problem with receiving of GSO packets in Windows XP guests causing packet loss in host-to-VM transfers
- HPET: several fixes (bugs #10170, #10306)
- Clipboard: disable the clipboard by default for new VMs
- BIOS: the PCI BIOS was not properly detected with the chipset type set to ICH9 (bugs #9301, #10327)
- Mac OS X hosts: adaptions to Mountain Lion