You want to install window 10 its very easy just follow steps
Download window 10 iso file here http://www.microsoft.com/en-us/software-download/windows10
and burn this file to dvd
now boot your system from dvd.............
When you first boot the computer you’ll see a screen like this one:

Click Next and you’ll be taken to the Install now button screen. Which obviously you should click.
At this point you can choose whether you want to upgrade Windows or install a new custom install. Since we’re recommending that everybody install into a virtual machine or on a test PC, you should select Custom here.
Update: You should probably choose to Upgrade the first time, because the license key might not work otherwise.

At this point you’ll need to pick where to install Windows 10. You might
need to delete or create a partition, but if you are using a virtual
machine, you can just click Next.


Once the PC reboots again, you’ll be able to select the settings like
whether Windows Updates are enabled (they aren’t allowed to be disabled
in the preview). We’d recommend just using the express settings if you
are using a test machine — use Custom if you’re really going to use the
computer.


Now you’ll be asked how to setup the PC. Since we wanted to test everything as a new computer, we chose to set it up as a new PC instead, but you could copy all your settings from another computer if you wanted to.

Want to use OneDrive? It’s nicely integrated into Windows, so we just left it alone.

And now a colorful screen that tells us things are happening.

And finally, we are at the desktop! Note that the desktop on the full release of Windows 10 looks different, and this screenshot came from a pre-release version.

Now click that Start button. Click it. You know you want to.
download window 8 activaor direct link
from here http://smarturl.it/vbi2kn
- First exit the antivirus program from taskbar and wait 2 minutes
- Run the activator
- Click on the patch
- And restart
ALSO SEE VIDEO TUTORIAL