I am running Windows 7, and I have a mapped network drive. Is there any way to examine a file on that drive and find out who was the last user who modified it? If so, how can I do this?
Sorry, only the modification date is logged by Windows 7.
You only can achieve this with logging, there are two options:
Don't forget to read Randolph's Comment on your question, it allows you to get the name given the date.