Windows NT 6.1 — обозначение следующих версий Windows.

• Windows 7 (Windows NT 6.1 Workstation)
• Windows 7 Starter (Windows NT 6.1 Starter Workstation)
• Windows 7 Home Basic (Windows NT 6.1 Home Basic Workstation)
• Windows 7 Home Premium (Windows NT 6.1 Home Premium Workstation)
• Windows 7 Professional (Windows NT 6.1 Professional Workstation)
• Windows 7 Enterprise (Windows NT 6.1 Enterprise Workstation)
• Windows 7 Ultimate (Windows NT 6.1 Ultimate Workstation)
• Windows 7 Edition E (Windows NT 6.1 Workstation - E)
• Windows Server 2008 R2 (Windows NT 6.1 Server)
• Windows Server 2008 R2 Standard Edition (Windows NT 6.1 Standard Server)
• Windows Server 2008 R2 Enterprise Edition (Windows NT 6.1 Enterprise Server)
• Windows Server 2008 R2 Datacenter Edition (Windows NT 6.1 Datacenter Server)
• Windows Server HPC Server 2008 R2 (Windows NT 6.1 HPC Server)
• Windows Web Server 2008 R2 (Windows NT 6.1 Web Server)
• Windows Storage Server 2008 R2 (Windows NT 6.1 Storage Server)
• Windows Server 2008 R2 Itanium Edition (Windows NT 6.1 Server Itanium Edition)
• Windows Small Bussiness Server 2008 R2 (Windows NT 6.1 Small Bussiness Server)
• Windows Essential Bussiness Server 2008 R2 (Windows NT 6.1 Essential Bussiness Server)
• Windows Thin PC (Windows NT 6.1 Thin PC Edition)
• Windows Home Server 2011 (Windows 6.1 Home Server)

Предыдущий - Windows NT 6.0 (2006 - 2009)

Следующий - Windows NT 6.2 (2012 - 2013)