Windows NT Windows NT 4.0 Windows 95/98/ME Windows 95 Windows 98 Windows 2000 Windows 5.0 Windows XP Windows 5.1 Spoofed value often used by Samba -- assert nothing. Windows 6.1 Windows XP with Service Pack Windows XP 2600 Service Pack 1 Windows XP with build number Windows XP 2600 Windows XP without a version Windows XP Home Edition Windows XP Professional Windows Server 2003 Beta Windows Server 2003 R2 Windows Server 2003 R2 (SP) Windows Server 2003 R2 3790 Service Pack 2 Windows Server 2003 R2 3790 Service Pack 2, v.2825 Windows Server 2003 with a build Windows Server 2003 3790 Windows Server 2003 without a build Windows Server 2003 Windows Server 2003 (SP) Windows Server 2003 3790 Service Pack 1, v.3309 Windows Server 2003 3790 Service Pack 2 Windows Server 2008 without a build Windows Server 2008 Windows Server 2008 Windows Server (R) 2008 Enterprise without Hyper-V 6001 Service Pack 1 Windows Server (R) 2008 Enterprise 6002 Service Pack 2, v.275 Windows Web Server 2008 (SP) Windows (R) Web Server 2008 6002 Service Pack 2 Windows Web Server 2008 Windows (R) Web Server 2008 6002 Windows Server 2008 Storage (SP) Windows Server 2008 Storage Windows Server 2008 HPC Windows Server 2008 HPC Edition 7601 Service Pack 1 Windows Web Server 2008 HPC Windows Server 2008 HPC Edition 7600 Windows Server 2008 R2 Windows Server 2008 R2 Enterprise 7601 Service Pack 1 Windows Server 2008 R2 Standard 7601 Service Pack 1 Windows Server 2008 R2 without Service Pack Windows Server 2008 R2 Enterprise 7600 Windows Server 2008 R2 Standard 7600 Windows Server 2008 R2 Datacenter 7600 Windows Server 2008 R2 Web Windows Web Server 2008 R2 7601 Service Pack 1 Windows Web Server 2008 R2 Web Windows Web Server 2008 R2 7600 Windows Server 2008 Storage R2 (SP) Windows Storage Server 2008 R2 Essentials 7601 Service Pack 1 Windows Server 2008 R2 Hyper-V Hyper-V Server 7601 Service Pack 1 Windows Server 2019 with a build, without service pack Windows Server 2019 Standard 17763 Windows Server 2019 Standard Evaluation 17763 Windows Server 2019 Datacenter 17763 Windows Server 2019 Essentials 17763 Windows Server 2019 Hyper-V Hyper-V Server 2019 17763 Windows Server 2016 with a build, without service pack Windows Server 2016 Datacenter 14393 Windows Server 2016 Standard Evaluation 14393 Windows Server 2016 Technical Preview 4 Essentials 10586 Windows Server 2016 Storage Windows Storage Server 2016 Standard 14393 Windows Server 2016 Hyper-V Hyper-V Server 2016 14393 Windows Vista (SP) Windows Vista (TM) Home Premium 6002 Service Pack 2 Windows Vista Windows Vista (TM) Home Premium 6000 Windows 7/8 (SP + Edition) Windows 7 Enterprise 7601 Service Pack 1 Windows 7 Starter 7601 Service Pack 1 Windows 7 Ultimate 7601 Service Pack 1, v.178 Windows 7/8 (SP) Windows 7 7601 Service Pack 1 Windows 7/8 (Edition) Windows 7 Enterprise 7600 Windows 8.1 Enterprise 9600 Windows 8 Enterprise 9200 Windows 7/8 Windows 8 9200 Windows Server 2012 R2 (SP) Windows Server 2012 R2 Standard 9600 Service Pack 1 Windows Server 2012 R2 Windows Server 2012 R2 Standard 9600 Windows Server 2012 R2 Storage Windows Storage Server 2012 R2 Standard 9600 Windows Storage Server 2012 R2 Workgroup 9600 Windows Storage Server 2012 R2 Essentials 9600 Windows Server 2012 R2 Hyper-V Hyper-V Server 2012 R2 9600 Windows Server 2012 (SP) Windows Server 2012 Standard 9200 Service Pack 1 Windows Server 2012 Windows Server 2012 Standard 9200 Windows Server 2012 Storage Windows Storage Server 2012 Standard 9200 Windows Storage Server 2012 Workgroup 9200 Windows Server 2012 Hyper-V Hyper-V Server 2012 9200 Windows MultiPoint Server 2012 (SP) Windows MultiPoint Server 2012 Premium 9201 Service Pack 1 Windows MultiPoint Server 2012 Windows MultiPoint Server 2012 Premium 9200 Windows 10 Enterprise Insider Preview Windows 10 Enterprise Insider Preview 10130 Windows 10 Windows 10 Enterprise 10130 Windows 10 Mobile Enterprise 10130 Windows 10 Mobile 10130 Windows 10 Home 10130 Windows 10 Education 10130 Windows 10 Professional 10130 Windows 10 Enterprise N 2015 LTSB 10240 Windows 10 Enterprise 2016 LTSB Evaluation 14393 VxWorks VxWorks OS/400 OS/400 V4R5M0 OS400 V5R4M5 IBM i5/OS I5OS V6R1M1 SMB exposed via SMB shared USB disks on Apple devices Apple Base Station EMC Celerra EMC-SNAS:T7.1.80.7 Netreon SAN software Netreon OS 1.0 QNAP QTS QTS AIX axai9876 DG/UX i3dg9876 Darwin m8dw9876 DYNIX m8dy9876 FreeBSD m8fb9876 HP-UX m8hp9876 IRIX m8ir9876 Linux m8li9876 SVR m8mo9876 OSF/1 m8o19876 RISC OS m8ro9876 OpenServer m8sc9876 SunOS m8so9876 Solaris m8su9876 SINIX m8sx9876 Ultrix/1 m8ul9876 UnixWare m8un9876 Windows m8wi9876 Generally some Samba variant, which reports Unix Unix