Yes, Windows XP HOME..but do you have Service Pack 2 or something else? Do you also have all the Windows Security Updates installed from the Windows Update site?

Why did you run the Windows Installer Clean Up Utility? Did you uninstall something and start having problems?

Please give us the EXACT 1706 error and when it occurs. Are you downloading programs from the internet using Internet Explorer or some other browser? Usually that error occurs when you INSTALL programs not Download them. When does it occur and with which programs? (Maybe Microsoft Office? Is it a legal version?)

Hope this helps and let us know more.