This article published byMiniTool corporationteaches you three methods to convert Windows existing installation into portable ISO.
It includes everything that needed to boot up a computer or implement the OS.
Then,how to createWindows 10 ISO from existing installation?There are several methods.

Way 1.
Below will takeMiniTool ShadowMakerfor example to show youhow to make a bootable iso ofexisting windows installation.
If it pops up asking you for purchase, clickKeep Trialto keep using it freely.

Step 2.When entering the main interface of the program, select theToolsoption.
Step 3.In the Tools tab, chooseMedia Builder.
Step 4.In the pop-up new window named MiniTool Media Builder, click onWinPE-based media with MiniTool plug-into select it.

Add Drivers To manually add drivers on your machine into the upcoming ISO file.
Detect Drivers To automatically detect drivers that are compatible with WinPE from the running Windows.
Step 6.Next, selectISO Fileand choose a local location to save the ISO.

It will start to create the Windows ISO immediately after you pick up a storage address.
Step 7.Wait until the process finishes.
It wont take too long (usually within 10 minutes).

Or, you could do your other business during the task is processing.
Finally, you might see the crated Windows 10/11 ISO image in the location you choose.
Actually, MiniTool ShadowMaker is more adata backup appthan a bootable media creator.

Way 2.
Then, it’s possible for you to firstlydownload Windows Media Creation Toolon your machine.
Step 1.grab the downloadedMediaCreationTool20H2.exefile to run it.

Step 2.SelectAcceptto agree to the applicable notices and license terms to continue.
Step 4.Select language, architecture, and editionfor the Windows media.
It will detect your current tweaks and select them as default for you.

Step5.ChooseISO filein the Choose which media to use screen.
Then, clickNextto select a location on your local machine to save the Windows 10/11 ISO image.
Step 6.Wait until the system image creation completes.

It will take a certain period of time depending on the different versions of Windows 10/11.
For me, it costs me about 35 minutes to finish the task.
The detailed guide will be described below.

Way 3.
First of all, download and install MiniTool Partition Wizard on your gear.
Next, initiate the program and click theBootable Mediaicon on the upper right.

Then, the MiniTool Media Builder window will pop up and just follow the guide in Way 1.
Wonderful, I have learned all 3 ways to build Windows 10/11 ISO images from existing installation!
Case 1.

You will need a professional ISO burner.
The Windows Media Creation Tool itself is also an ISO burner.
For the first place, insert a USB or DVD into your machine.

The target disc will be overwritten and the data on it will be deleted.
So, double-check you have moved out all important files before using it to store the ISO image.
A blank disc is recommended here.
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it’s crucial that you clickApplyto save the changes.
Also, you are able to burn the ISO image into a USB disk with third-party tools likeRufus.
In the Install Windows screen, personalize yourlanguage,time, andkeyboardpreferences, selectNext, and clickInstall Windows.
Case 2.
Mount Windows 10/11 ISO Image
Besides, you could directly make use of the created system ISO.
Easily, right-hit the ISO file and chooseMount.
Within the mounted DVD drive, double-click thesetup.exeto trigger theWindows 10/11 Setup.
Then, follow the on-screen guidance to finish upgrading to Windows 10/11.
Actually, you could directlycreate a bootable CD/DVD/USBwith the software above.
Doing that, you do not need to further burn the ISO image into a physical disc or USB.
Why Need to Create Windows 10/11 ISO Image from Existing Installation?
Yet, an ISO file is better than a backup image file for:
Whats quick access in Win1?
How to remove, disable, clear, turn off, unpin, or stop quick access?
How to add, enable, turn on, pin, or start quick access?
OK, that is all I want to share about creating ISO images from Windows build.
If you have other methods that can achieve the same purpose, like share them with our readers.
Surely, you cancreate Windows 7 ISO image from existing installationby MiniTool ShadowMaker or MiniTool Partition Wizard.