- 10GB of disk (Note that **it is possible to install Qubes on an external USB disk**, so that you can try it without sacrificing your current system. Mind, however, that USB disks are usually SLOW!)
- Intel VT-d or AMD IOMMU technology (this is needed for effective isolation of your network VMs)
If you don't meet the additional criteria, you can still install and use Qubes. It still offers significant security improvement over traditional OSes, because things such as GUI isolation, or kernel protection do not require special hardware.
**Note:** We don't recommend installing Qubes in a virtual machine! **Note:** There is a problem with supporting keyboard and mouse on Mac, and so Mac hardware is currently unsupported (patches welcomed!)
Once you verify this is an authentic ISO, you should burn it on a DVD. For instructions on how to "burn" it on a USB stick, see [this page](/wiki/UsbInstallation). Before proceeding with the installation, you are encouraged to first read all the information on this page, especially the *Known Issues* paragraph.
Then, when finally ready, boot your system from the installer DVD and follow the instructions on screen. The installer is very simple and asks very few questions -- it's actually easier to install Qubes right now than most other Linux distributions!
The installer loads Xen right at the beginning, so chances are high that if you can see the installer's graphical screen, Qubes will work on your system :)
If you have Qubes Beta 1 currently installed on your system, you must reinstall from scratch, as we offer no direct upgrade option in the installer (sorry). However, we do offer tools for smooth migration of your AppVMs. In order to do that, please backup your AppVMs using the ```qvm-backup``` tool [as usual](/wiki/BackupRestore). Then, after you install Qubes Beta 2, you can restore them using ```qvm-backup-restore``` tool that.
- NVIDIA GPU will likely cause problems, especially if you use suspend-to-RAM. This mostly results from the general poor support for NVIDIA GPUs under Linux, which in turn is caused by the lack of open documentation for those GPUs. You might try to use the NVIDIA's proprietary driver (see the instructions [here](/wiki/InstallNvidiaDriver)), which apparently helps a lot.
- If you have Sony Vaio Z, you will need some tinkering before you would be able to fully use this machine with Qubes (and generally with non-Windows systems). See this [page](/wiki/SonyVaioTinkering) for instructions.
- KDE taskbar might look ugly. This problem can be easily solved by turning composition on (it's called "Desktop Effects", and can be found in System Settings/Desktop tab).
- Installer might not support some USB keyboards (\#230). This seems to include all the Mac Book keyboards (most PC laptops have PS2 keyboards and are not affected).
