Hi Jim_Mauro9,
Thank you for using Microsoft Windows forum.
First check if your computer is connected to a Domain or a Workgroup ?
Click Start >> Right Click on Computer >> Click Properties and check if your computer is on Workgroup or Domain.
If it is on Domain contact : http://social.technet.microsoft.com/Forums/en/category/w7itpro,windowsvistaitpro,windowsxpitpro/
If it is on Workgroup :
Click Start >> click "Network and Sharing center" >> click "Advanced Sharing center" and Turn off password protection sharing and save changes.
Hope it helped
Azeez Nadeem - Microsoft Support