| Release date | Answer | % Correct |
|---|---|---|
| 1985 | 1.0 | 99%
|
| 1990 | 3.0 | 94%
|
| 2015 | 10 | 93%
|
| 2012 | 8 | 88%
|
| 2009 | 7 | 87%
|
| 2001 | XP | 84%
|
| 2006-2007 | Vista | 83%
|
| 1995 | 95 | 78%
|
| 1996 | NT 4.0 | 78%
|
| 2000 | 2000 | 73%
|
| 1998 | 98 | 73%
|
| 2013 | 8.1 | 66%
|
| 2000 | ME | 64%
|
| 1992 | 3.1 | 58%
|
| 2003 | Server 2003 | 49%
|
| 2005 | Server 2003 R2 | 47%
|
| 2008 | Server 2008 | 43%
|
| 2012 | Server 2012 | 39%
|
| 2016 | Server 2016 | 39%
|
| 2019 | Server 2019 | 34%
|
| 1993 | 3.2 | 30%
|
| 1994 | NT 3.5 | 29%
|
| 1986 | 1.02 | 25%
|
| 1993 | 3.11 | 24%
|
| 1993 | NT 3.1 | 24%
|
| 1986 | 1.03 | 23%
|
| 1987 | 1.04 | 22%
|
| 1987 | 2.03 | 20%
|
| 1989 | 2.11 | 18%
|
| 1995 | NT 3.51 | 18%
|
| 2009 | Server 2008 R2 | 15%
|
| 1988 | 2.10 | 14%
|
| 2013 | Server 2012 R2 | 14%
|
| 2005 | XP Professional | 9%
|