How to download Windows 11 ISO files

This article provides clear instructions on how to download the latest Japanese version of Windows 11 ISO file from the official Microsoft website.

We will also explain why downloading from sources other than the official website is dangerous, and what to do if you see the error message "A problem occurred while processing your request..." when downloading.

1. Download the ISO file from the official Microsoft download page.

Now, let's take a look at the specific download steps.

Step 1: Visit the download page

First, go to the official Microsoft download page below.

Download Windows 11 (official Microsoft page)

Step 2: Download the Windows 11 disc image (ISO) for your x64 device

1. Scroll down the page to the section titled "Download a Windows 11 disc image (ISO) for x64 devices." Click "Select a download."

2. A drop-down menu will appear, so select "Windows 11 (Multi-edition ISO for x64 devices)" and click the "Download Now" button.

Step 3: Select your language

1. The "Select Product Language" section will appear, so click "Choose one".

2. Select "Japanese" (the language you want to download) from the drop-down menu and click the "Confirm" button.

Step 4: Click on the download link

1. "Download - Windows 11 Japanese" will be displayed. Click the "64-bit Download" button to start the download.

*You do not need to sign in to a Microsoft account to download the disc image (ISO).

Since the file size is several GB, we recommend downloading it in a stable internet environment. If the download fails midway, try downloading at a different time or using a different web browser.

The following page provides a complete guide on how to create a Windows 11 installation USB memory stick using free software called Rufus, so please refer to it.

Complete steps to create a Windows 11 installation USB drive using Rufus

[Troubleshooting] If an error appears when downloading

When trying to download an ISO file from the official Microsoft website, the following error message may appear and the download may not start.

Error
There was a problem processing your request. Please try again later. Reference ID: (long string with date and time)

This is most likely not a problem with your PC or Internet connection, but rather a temporary high load or malfunction on Microsoft's download server.

【approach】

As instructed in the error message, please try the following first:

▼ List of main solutions

Wait a little while and then try downloading again: This is the most effective solution. Please wait a few minutes and then try accessing the download page again.

Reload (refresh) the web page: Refresh your browser or press F5 on your keyboard. This may connect you to a different server.

Web page won't refresh? How to clear your browser cache and reload (F5/Ctrl+F5)

Try a different browser or in private mode:

It may be due to your browser cache, so try clearing it.

Try using an "InPrivate window" in Edge or an "Incognito window" in Chrome.

If you have a different browser that you don't normally use (such as Firefox), it may be a good idea to try it out.

Try a different time of day: If you're not in a rush, try again at a less busy time (such as early morning or late night).

In most cases, this is a temporary problem on the server side.Just wait a bit and it will be resolved.Don't panic and try the solutions above.

2. Download the ISO file from the Media Creation Tool

Above we explained how to download the ISO file directly from the official Microsoft download page, but you can also download the ISO file from the Media Creation Tool, the official tool for creating a USB memory stick for installing Windows 11.

For detailed instructions on how to use it, please refer to the article below.

How to Use the Windows 11 Media Creation Tool | Error Troubleshooting

The ISO file downloaded using the Media Creation Tool does not include the Professional Education and Professional Workstation versions, so the file size is several GB smaller than the ISO file downloaded from the official website.

Downloading from sources other than official websites and tools is dangerousで す

In addition to the official Microsoft website, there are countless sites on the Internet that claim to allow you to download Windows 11 ISO files.

But,Official Website・Official toolsDownloading from other sources is extremely dangerous and is not recommended.

Three risks lurking on unofficial sites

1. Risk of virus and malware contamination: A tampered ISO file may contain viruses or malware. If you install it without realizing it, your PC may be taken over by a malicious third party the moment you start it up.
2. Activation issues: If the OS has been illegally modified, it may not be possible to properly activate the license, or it may suddenly become unactivated one day.
3. Information is outdated and unstable: You are likely running an older version of the OS that does not have the latest security patches.

For a safe Windows life, ISO filesAlways use the official Microsoft website and official tools.Let's download it.

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