Obtaining the legitimate, untouched ISO for the 2015 release is becoming increasingly difficult as Microsoft removes outdated builds from public servers to encourage users to stay up to date.
That 2015 ISO — which Microsoft called the "last version of Windows" — was quickly followed by 1511 (November Update), then 1607 (Anniversary Update), then 1703, 1709, 1803… So much for "last version."
Are you actually looking to install it for nostalgia/research, or just curious about the story? I can point you to a safe, sandboxed way to explore that historical build if you're interested.
Note: Windows 10 version 2015 refers to Windows 10 version 1507 (build 10240), released in July 2015. This was the original release of Windows 10. Microsoft no longer supports this version, and official ISO downloads are not available from Microsoft.com for general consumers (only via legacy channels like MSDN or Volume Licensing for enterprise customers).
| Source Type | Availability | Reliability | Notes | |-------------|--------------|-------------|-------| | Microsoft Official Consumer Download | ❌ No | N/A | Microsoft.com now offers the latest version (22H2) via Media Creation Tool. | | MSDN / Visual Studio Subscriptions | ✅ Yes (Legacy) | High | Available to active subscribers under "Windows 10 (Original Release)." | | Volume Licensing Service Center (VLSC) | ✅ Yes (LTSB only) | High | Windows 10 Enterprise 2015 LTSB available for Volume Licensing customers. | | Third-party websites (archive.org, etc.) | ⚠️ Possible | Low/Unknown | Files may be modified, infected, or corrupted. No SHA-1 verification guaranteed. |
But a warning: installing that 2015 build today is dangerous. It's missing patches for EternalBlue, PrintNightmare, and hundreds of other CVEs. You'd be infected within minutes of connecting to the internet.
Several reputable third-party tools (e.g., "Windows ISO Downloader" by HeiDoc.net) provide direct links to Microsoft’s servers for older builds. These tools do not host the ISOs but query Microsoft’s public servers. Always verify checksums.
Q: Can I upgrade Windows 10 1507 to a newer version without updates?
A: No. Feature updates (e.g., 1507 → 1511) require Windows Update or manually downloading an Upgrade Assistant ISO. But skipping security updates first often results in upgrade failure.
Q: Will my modern printer/graphics card work on this ISO?
A: Unlikely. Driver models evolved significantly after 2017.
Q: Is Windows 10 Version 1507 the same as Windows 10 RTM?
A: Yes. “RTM” (Release to Manufacturing) build number is 10240.
Q: How can I get the SHA-1 checksum for the original ISO?
A: Microsoft published hashes in the now-defunct MSDN download section. Reliable third-party archives like thegatheringofmiddleearth.com maintain lists for preservation.
This article is for informational purposes only. Always comply with software licensing laws and prioritize system security. Last updated: 2026.
The two primary versions of Windows 10 released in 2015 are Version 1507 (the original RTM release) and Version 1511 (the first major update).
Microsoft no longer officially provides direct download links for these specific older versions through its main software download page, which only offers the most recent version. To obtain the 2015 ISOs, you must use alternative community archives or third-party tools that pull from official servers. 1. Windows 10 Version 1507 (Build 10240)
This was the very first public release, launched in July 2015. windows 10 version 2015 iso
Internet Archive (Untouched ISOs): You can find original, untouched ISOs for various languages and architectures (x86/x64) on Archive.org.
Edition Options: These typically include Home and Pro editions. There are also specific listings for Enterprise Evaluation builds if needed. 2. Windows 10 Version 1511 (Build 10586)
Known as the "November Update," this was released in November 2015.
Internet Archive: Multi-language Home and Pro ISOs are archived here as well.
OEM Variants: Some archives include specific OEM versions (like HP or PowerSpec) which include manufacturer-specific folders but otherwise function as standard Windows 10 media. 3. Using Third-Party Downloader Tools (Recommended)
The most reliable way to get these ISOs without browsing large archives is to use tools that fetch links directly from Microsoft's back-end servers:
Rufus: This popular bootable USB tool has a built-in "Download" feature that allows you to select older Windows 10 versions, including the 2015 releases.
Universal Heidoc.net Tool: Often cited in forums like TenForums, this GUI-based tool provides a direct interface to choose any previous Windows version for download.
Windows 10 Version 1507 (Build 10240), released in July 2015, was the original "RTM" (Release to Manufacturing) version of Windows 10. While Microsoft has officially ended support for this version for most users, it remains accessible for archival and testing purposes. 1. Understanding Windows 10 Version 1507 Release Date: July 29, 2015. Support Status:
End of Life (EOL). Security updates ended in May 2017 for Home and Pro editions. Key Features:
Introduced the Start Menu (returning from Windows 7), Microsoft Edge (Legacy), Cortana, and the Action Center.
Legacy hardware testing, software compatibility audits, or retro-computing projects. 2. How to Obtain the ISO Microsoft's official Media Creation Tool
now defaults to the latest version (currently 22H2). To get the 2015 version, you must use one of these methods: Microsoft Visual Studio Subscriptions (formerly MSDN):
If you have a paid subscription, Microsoft provides an archive of every Windows 10 version in the "Downloads" section. Volume Licensing Service Center (VLSC): Obtaining the legitimate, untouched ISO for the 2015
Enterprise customers can download the 1507 ISO if their agreement includes legacy software access.
A popular third-party utility that includes a "Download" script. You can select "Windows 10," then choose Release 1507 [Build 10240] to download the ISO directly from Microsoft's servers. Third-Party Archives: Sites like Internet Archive host original ISOs, but you must verify the SHA-1 hash
against official Microsoft documentation to ensure the file hasn't been tampered with. 3. Installation Process Create Bootable Media: Use a tool like to flash the ISO onto a USB drive (minimum 8GB). BIOS Settings:
Ensure your PC is set to boot from USB. For 2015-era hardware, you may need to toggle between Legacy/CSM modes depending on how the ISO was burned. Clean Install:
Boot from the USB, select your language, and choose "Custom: Install Windows only (advanced)." Delete existing partitions to ensure a clean environment. Product Key:
You can use a standard Windows 10/11 Home or Pro key. Version 1507 will typically activate once connected to the internet if the hardware has a digital license. 4. Post-Installation Warnings Security Risks:
Since this version is no longer updated, it is highly vulnerable to modern malware. Do not use this as your primary OS for banking or personal data. Driver Compatibility:
Modern hardware (e.g., Intel 12th Gen+ or NVIDIA RTX cards) may not have drivers compatible with such an old build of Windows 10. App Store & Browsing:
The original Microsoft Store and Edge Legacy may fail to load or render modern websites correctly. 5. Version Identification
Once installed, you can verify you are on the 2015 version by: and hitting Enter. Looking for Version 1507 (OS Build 10240)
specifically to pull this older version from Microsoft's archives? AI responses may include mistakes. Learn more
Windows 10, released on July 29, 2015, marked a significant shift in Microsoft's operating system strategy, moving toward a model often described as "Windows as a Service." The original 2015 release, known as Version 1507 (Build 10240), reintroduced the Start menu and introduced features like the Microsoft Edge browser and the virtual assistant Cortana. For users and IT professionals today, obtaining a 2015-era ISO is usually driven by the need for historical testing, running legacy software on specific hardware, or utilizing the Long-Term Servicing Branch (LTSB).
The initial version of Windows 10 was followed shortly by Version 1511, the "November Update," which brought improvements to security and virtualization tools like Hyper-V. However, the 2015 release is most notable for the introduction of the LTSB (now LTSC) edition. This version was designed for specialized environments—such as medical equipment or factory controllers—where stability is paramount and frequent feature updates are undesirable. The 2015 LTSB version was unique in that it promised ten years of support, ensuring security updates without the interface changes common in standard "Home" or "Pro" editions.
Acquiring a genuine 2015 ISO today presents challenges. Microsoft typically only provides the most recent version of Windows 10 (currently 22H2) through its official Media Creation Tool. While third-party archives may host older ISOs, users must be cautious to ensure the integrity of the files to avoid security risks. Furthermore, activation rules have changed; Microsoft recently closed loopholes that allowed newer installations of Windows 10 to be activated with older Windows 7 or 8 keys, though this primarily affects fresh installs on modern hardware rather than the legacy 2015 builds themselves. | Source Type | Availability | Reliability |
In summary, the Windows 10 2015 ISO represents the bedrock of the most successful modern operating system. While largely superseded by more secure and feature-rich versions, it remains a vital tool for maintaining legacy systems and specialized industrial environments that require a "frozen" version of the Windows ecosystem. Quick Facts: Windows 10 (2015) 🚀 Release Date: July 29, 2015 🛠️ Build Number: 10240 (Version 1507) 🛡️ Key Version: LTSB 2015 (Long-Term Servicing Branch)
🛑 Support Status: Mainstream support for Version 1507 ended in 2017; LTSB 2015 support extended through 2025 Legacy Support & ISO Usage Support Lifecycle Home/Pro General consumers Short (usually 18–24 months) LTSB 2015 Industrial/Critical systems Long-term (up to 10 years) Education Academic environments Variable based on licensing
If you are looking for more specific details, I can help with:
Finding checksums (SHA-1) to verify the authenticity of an old ISO
Step-by-step instructions for creating a bootable USB from a legacy ISO
Explaining the differences between 1507 and 1511 (the two 2015 versions) Which of these would be most helpful for your project? AI responses may include mistakes. Learn more
The story of the Windows 10 version 2015 ISO marks the birth of Microsoft's "Windows as a Service" era. Released in July 2015, this original version (retroactively named version 1507 and codenamed "Threshold 1") was the first official build of the operating system. The Evolution of the ISO
The Launch (July 29, 2015): Windows 10 was offered as a free upgrade for Windows 7 and 8.1 users, a radical shift from previous paid releases.
A "Service" Mindset: Unlike older versions like XP or 7, which received major updates only through rare Service Packs, the 2015 ISO was designed to be the foundation for frequent "feature updates" every six months.
Legacy Status: Over time, Microsoft moved on to newer versions (like the final 22H2). As of October 14, 2025, Windows 10 reached its official end of support, meaning it no longer receives security updates or patches. Finding the 2015 ISO Today
While Microsoft's Official Windows 10 Download Page now only provides the latest version (22H2), enthusiasts and archivists still seek the original 2015 build for compatibility or historical testing. Windows 10 Download 29 July 2015 Direct ISO Links Working
That's an intriguing request—"Windows 10 version 2015 ISO" paired with "interesting story." Let me clarify what likely happened here, because Windows 10 version 2015 isn't a standard official name, but you're pointing to a very specific piece of computing history.
Despite the risks, there are valid (and legal) scenarios for acquiring this ISO: