關於Parallels打不開

我開Parallels按播放後
跑出以下的訊息
是怎麼了？要怎麼樣才能開的了呢？


There is no operating system installed in the virtual machine.
Please do the following:

1. Click the Power Off button to stop the virtual machine.
2. Insert the installation CD with your operating system into the CD-ROM drive of your computer.
3. Click the Power On button to start the virtual machine again.
4. Wait while installation program starts and follow on-screen instructions.

Consult the following sources for more details:
- Quick Start Guide, How to Build a Windows XP Virtual Machine topic (select Help->Quick Start Guide in menu);
- Online Help, Managing Virtual Machines->Installing Guest OS section (select Help->Contents in menu).