Hi, guys. Can tell anyone how to install mikrotik from boot CD, without formating computer. I try to install Mitrotik 2.7, but, it requires formatting HD of computer. I thank everyone response to me.
Greetings!
I have a few spare hard drives that I use for this. Disconnect/remove your permanent hard drive, connect/install new drive. Like a new computer! When you are done, reinstall/connect your original drive, and its like nothing happened. 
EDIT: Maybe I misunderstood the goal. You should be able to create a bootable CD from an image with your CD writer software. My software has a “create CD from image” selection. It will ask for an *.iso file. Use the iso for the bootable CD, and it should make you a bootable CD. Also, insure the disk boot order is CD - Hard drive in the bios settings.
SurferTim is correct,
But why dont you use the latest version. the ISO is freely available on the website
Mikrotik does not work with another operating system installed on the same hard drive. It will always try to format and install. Cant dual boot with mt.