It is the first thing you need to fix the issue as stated above. For that, you need to run the virtual machine showing the error and go to the Devices > Install Guest ...

As a person who uses Linux regularly, often I am asked about my opinions about other operating systems, especially those coming from large companies located in Redmond, Washington. Here's the deal.

Everyone likes to try new and shiny technology toys like the Windows 7 beta, but when the price is having to replace your existing operating system, that’s too much for most people. That’s when being ...