There are two versions of the Windows 7 operating system: RTM and Final.
RTM (Release To Manufacturing) is the first version of Windows 7 available to the public.
This initial Windows 7 release is for development and testing.
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Windows 7 Ultimate RTM
On July 22, 2009, Windows 7 Ultimate RTM was released.
RTM releases of Windows are usually reserved for developers and IT professionals.
However, end users with a valid product key can also download the Windows 7 Ultimate RTM version.

Do you have Windows 7 backup software to keep data safe?
Here in this post, we introduce 7 pieces of software to backup up Windows 7.
Click theISO IMAGEoption to check the ISO files.
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Besides, you might click theSHOW ALLoption to see more ISO files.
you’re free to choose one of them based on your needs.
you’ve got the option to try theWindows backup software MiniTool ShdowMaker to do that.
Refer to this post How to Back up Computer?
Here Is a Guide for Windows and Mac.
Step 2: Plug an empty USB into your setup and then launch Rufus.
Step 4: Then, follow the on-screen instructions to create a bootable drive.
Step 5: Connect the bootable drive to the target computer.
This post introduces how to create a Windows 7 system repair disc.
With it, your PC can boot from it to recover your operating system.
See the guide now!
Final Words
What is Windows 7 Ultimate RTM?
How to free download and implement the Windows 7 Ultimate RTM ISO?
you could find answers in the above content.
Besides, its highly recommended to back up the system before installing Windows 7 Ultimate RTM.