In older Windows versions (like Windows 7), the initial release disc was known as RTM (Release to Manufacturing). In the Windows 10 era, Microsoft moved to a cumulative update model. While enthusiasts often refer to Version 1507 as the "RTM" build (specifically Build 10240), technically, it was simply the first "Current Branch" release.
Finding a clean, untouched ISO of Version 1507 (Build 10240) is significantly harder than finding ISOs for newer versions (like 21H2 or 22H2).
If you have a Visual Studio Subscription (formerly MSDN) or Volume Licensing agreement:
Microsoft ended Mainstream Support for Version 1507. Because of this, Microsoft’s official download servers prioritize the latest versions. Direct download links for 1507 have largely been scrubbed from public portals. windows 10 version 1507 iso
A: No. Support ended in 2017. There are no cumulative security updates.
When Microsoft unveiled Windows 10 on July 29, 2015, it marked a radical departure from the troubled Windows 8 era. The initial build, designated version 1507 (build number 10240), was more than just an operating system update—it was a philosophical reset. Today, enthusiasts, enterprise archivists, and legacy hardware users still search for the Windows 10 version 1507 ISO.
But why would anyone want the very first version of Windows 10 in 2026? Is it safe? Is it legal? And most importantly, where can you find a legitimate ISO file? In older Windows versions (like Windows 7), the
This article covers everything: the history of 1507, its unique features, upgrade paths, security considerations, and exact steps to download official media from Microsoft.
If you have a legitimate business or testing need for this specific version, you generally have three avenues:
After downloading, check the SHA-1 hash against known official values (example for English x64): If you have a legitimate business or testing
| Edition | SHA-1 |
|--------|-------|
| Windows 10 Pro (x64) | C71E3A9FCB61EABDF5EFF069AAC7C3B3A2F5D038 |
| Windows 10 Home (x64) | C24321C17A911F2A63A970DDD861809F38F11DBB |
Search for “Windows 10 1507 SHA-1 list” to match your exact language/edition.
Use PowerShell:
Get-FileHash -Path "C:\path\to\Win10_1507.iso" -Algorithm SHA1