Looks like it gave incomplete nfo on my OS so I went to the OS tab on the Sandra Report software and the OS is:
Windows 7 Home Premium 6.1.7601 : Service Pack 1
One thing odd is that sometimes Sandra sees my OS as:
Microsoft Windows Vista Home Media Center 6.01.7601 (Service Pack 1)
However, this has been addressed in an earlier thread and I do indeed actually have the Win & Home Premium Edition. For the past 2 years I have used PT10 constantly without incident.