Windows ISO Downloader

Download Windows 10 and Windows 11 ISOs directly from Microsoft's servers — no Media Creation Tool, no browser required.

Features

• Downloads ISOs straight from Microsoft's official CDN
• Supports Windows 10 (multi-edition: Home/Pro, 32-bit and 64-bit)
• Supports Windows 11 x64 and Windows 11 arm64
• Raw edition ID support — pass any numeric ProductEditionId from Microsoft's API
• SHA-256 verification — hash is computed while streaming and printed after download; pass --verify to fail on mismatch
• Interactive wizard when run without arguments
• All available languages supported
• Progress bar with speed and ETA
• --url-only mode to just print the download link

Install

cargo install --path .
# binary: wisodown

Or build manually:

cargo build --release
# binary at target/release/wisodown

Usage

Interactive wizard

wisodown

Prompts for Windows version, language, and (for Windows 10) 32-bit vs 64-bit.

Named editions

# Windows 11 x64, English
wisodown --edition x64 --language English

# Windows 11 arm64, French
wisodown --edition arm64 --language French

# Windows 10, English (prompts for 32-bit vs 64-bit)
wisodown --edition win10 --language English

# Save to a specific directory
wisodown --edition x64 --language English --output ~/Downloads

Raw edition IDs

Pass any numeric ProductEditionId directly, bypassing the named aliases:

wisodown --edition-id 2618 --language English
wisodown --edition-id 3321 --language Japanese

When using a custom edition ID for a product page other than Windows 11 x64, supply the corresponding page URL so the correct cookies are acquired:

wisodown --edition-id 2618 \
         --page-url https://www.microsoft.com/en-us/software-download/windows10ISO \
         --language English

--edition aliases

| Value | Description | | ------- | ----------------------------------------------------- | | x64 | Windows 11, 64-bit (x86-64) | | arm64 | Windows 11, ARM 64-bit | | win10 | Windows 10, multi-edition (Home/Pro, 32-bit + 64-bit) |

Hash verification

The SHA-256 digest is always computed during the download and printed to stderr:

✔ Saved to Win11_English_x64.iso
  SHA-256: b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

Pass --verify to assert an expected hash — the process exits with an error on mismatch:

wisodown --edition x64 --language English \
         --verify b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

Other flags

# List available languages for an edition
wisodown --edition win10 --list-languages

# Print the download URL without downloading
wisodown --edition x64 --language English --url-only

Anti-bot cookies (if downloads fail)

Microsoft's API uses a Sentinel bot-detection layer. The tool attempts to obtain the required cookies automatically, but if it fails you can supply them manually:

1. Open the download page in a browser
2. Open DevTools → Network → any request to microsoft.com → Request Headers → Cookie
3. Copy the cookie string and pass it:

wisodown --edition x64 --language English --cookie "MUID=...; fptctx2=..."

Debug mode

wisodown --edition x64 --language English --debug

Prints all API requests, responses, and cookie exchange steps to stderr.

How it works

1. Loads the Microsoft software download page to acquire session cookies
2. Calls ov-df.microsoft.com to simulate the browser fingerprinting step (fptctx2/MUID cookies) that Sentinel requires
3. Calls getSkuInformationByProductEdition to list available language SKUs
4. Calls GetProductDownloadLinksBySku to get a time-limited CDN link
5. Streams the ISO to disk, computing SHA-256 on the fly, with a progress bar

License

GNU General Public License 3.0