After Active Directory System Discovery, some computers have Operating_System_Name_and0 as only the version number

Question

Good morning,
We've been experiencing some odd behavior with discovery.  After Active Directory System Discovery, some computers have Operating_System_Name_and0 as only the version number; for example, " 6.1" (note the space before the 6) vs.
"Microsoft Windows NT Workstation 6.1" (although, not limited to Windows 7 workstations).
Here are two seemingly identical machine records in Active Directory WCBWIN7VDI10 and WCBWIN7VDI11.
After discovery
select Name0, Operating_System_Name_and0 from v_r_system where Name0 LIKE 'WCBWIN7VDI1[0,1]'
yields
Name0 Operating_System_Name_and0
WCBWIN7VDI10  6.1
WCBWIN7VDI11 Microsoft Windows NT Workstation 6.1
For discovery on a new domain yesterday we have the following distribution:
select count (*) as [count], convert (nvarchar, Creation_Date0, 110) as [creation date], Operating_System_Name_and0
from v_r_system where Full_Domain_Name0 like 'aaa.bbb.ccc'
group by Operating_System_Name_and0, convert (nvarchar, Creation_Date0, 110)
order by Operating_System_Name_and0
count
creation   date
Operating_System_Name_and0
274
12-01-2014
3
12-01-2014
 5.0
23
12-01-2014
 5.1
124
12-01-2014
 5.2
20
12-01-2014
 6.0
5109
12-01-2014
 6.1
6
12-01-2014
 6.2
4
12-01-2014
 6.3
1
12-01-2014
CentOS 6.0
13
12-01-2014
Microsoft   Windows NT Server
54
12-01-2014
Microsoft   Windows NT Server 5.2
9
12-01-2014
Microsoft   Windows NT Server 6.0
120
12-01-2014
Microsoft   Windows NT Server 6.1
2
12-01-2014
Microsoft   Windows NT Server 6.2
7
12-01-2014
Microsoft   Windows NT Server 6.3
6
12-01-2014
Microsoft   Windows NT Workstation 5.1
3501
12-01-2014
Microsoft   Windows NT Workstation 6.1
1
12-02-2014
Microsoft   Windows NT Workstation 6.1
5
12-01-2014
Microsoft   Windows NT Workstation 6.2
1
12-01-2014
Microsoft   Windows NT Workstation 6.3
2
12-01-2014
SLES 11
6
12-01-2014
Windows   Embedded Standard 6.1
Anybody know why this occurs?  We typically build our server vs. workstation collections with this.
Thanks,
Terence Durning

Answer 1

Hi Terence,
What is the value in Active Directory for the computer account?
Do you have the same behavior if you run this query? 
SELECT DISTINCT Operating_System_Name_and0 FROM v_R_System ORDER BY 1
You are talking about a space before 6.1. Do I see also a space for all Microsoft Windows like "Microsoft   Windows NT Workstation 6.3" ? 
Nick Pilon - Blog: System Center Dudes