1) Repeat the installation process. It will not delete any of your data files.

2) Check that WINSTEPS runs on an example dataset, e.g., exam1.txt

3) If the program will not run, or produces implausible results:

a) It may be a Windows-related problem, see www.winsteps.com/problems.htm

b) There may not be enough disk space for work files, see "Not enough disk space".

c) There may not be sufficient RAM memory to execute. See "Not enough memory".

d) It may be a text-editor problem, see Changing your Editor setting.

4) If you still have problems, use the comment form at www.winsteps.com