When done, click the Start button in the Manager. It will probably take around 10 minutes or so. Click Create and VirtualBox will begin building the drive. Although it will take a while longer to create a fixed size drive, the operating system will run faster afterwards, so I always recommend choosing the latter option.Įnter in a name for the new virtual drive ('Windows 8.1') and choose a size for it. You’ll be asked if you want the new virtual hard drive to be dynamic (meaning it will resize as required) or a fixed size. On the following screen choose to 'Create a virtual hard drive now' and click Create.Īccept VDI (VirtualBox Disk Image) as the hard drive file type. Open Command Prompt by using a way mentioned here.Set the Memory Size. If you also want to install Windows 8.1 Preview or Windows Server 2012 R2 Preview in Oracle VirtualBox software but getting the above mentioned error message, check out following simple steps to fix the issue:ġ. You just need to run a simple command in Command Prompt and the error message will disappear forever. Thanks to “ birdie” VirtualBox forum for sharing a working solution to solve this problem. When you try to install the Preview OS in VirtualBox, you get an error message “ Your PC needs to restart” with the error code “ 0x000000C4” as shown in following screenshot:Įven if you try to change a few settings here and there, the issue doesn’t get fixed. Things to Know Before Downloading or Installing Windows 8.1 Previewīut there is some problem in installing Windows 8.1 Preview or Windows Server 2012 R2 Preview in Oracle VirtualBox software. With the help of these virtualization software you install these OS virtually.Īfter release of Windows 8.1 Preview, we also advised you to install it on a separate partition or in virtualization software: It helps in testing new features of the OS without actually installing it on your hard disk. Whenever a testing version of Windows or any other operating system is released, its always advised to install it in a virtualization software such as Oracle VirtualBox or VMware Workstation.

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