An ISO Image is a copy of data stored on an optical disc like a DVD or CD. The easiest way to do it is by updating your current version to the latest Windows 10 version.
How to update from the old to the New Windows version?
As mentioned previously, Windows 10 is a free update for those who are using the Windows 7 or 8.1 version.
First thing first; ensure you have a genuine Windows version (7 or 8 or 8.1) on the system as the update is only reserved for these versions.
01.
Now in your Windows version go to Control panel- system and security- Windows update.
02.
Now if you are currently operating from one of the 190 countries where this version is launched then, you may see the Windows 10 update.
03.
Double-tap on “install the update” to start downloading Windows 10.
04.
If you have failed to find the above screen then, click on the Windows icon on the system tray to find the updates.
05.
Once you complete the above step, you will find the option “Reservation Confirmed” along with the “download Windows 10 update” option. Tap to complete the download.