When my wife tried to access her account she received the message that the "User Profile Service" failed to log on, so the user profile could not be loaded.  The Help menu explained that to correct this problem, I needed to create a new user account for her and, with the exception of three files (ntuser.dat, ntuser.dat.log, and ntuser.ini) I should copy all folders and files from her old account (Windows/User/OldUserName) into the new account in the same User folder.  Naturally, I had to first change the folder options to display all hidden and system files.  The Help menu explained that this process would not include her e-mail messages because, unlike her Contacts, these messages were not stored in the User/OldUserName folder.

When I opened the Windows Mail program in the newly created account, I tried to follow the instructions for importing the e-mail messages from the old account.  Unfortunately, I could not identify the folder in which the file for these e-mail messages was stored. 

Before I created this new account, I tried to correct the problem, I tried to resolve the problem by using the Backup program, but, for unknown reasons, the backup was not completed.  I also tried to use System Restore, but this did not work, possibly because the computer did boot up and, except for my wife's account, worked properly.  I am still considering copying the ntuser.dat, ntuser.dat.log, and ntuser.ini files from the new account into the old account, the rationale being that my wife could not open her account because one or more of these files was corrupted, and I am simply "repairing" the old account by replacing the corrupted files with newly created files.  I have not taken this action because I suspect that the corrupted files were uniquely tailored to the characteristics of the old account.

Consequently, my only recourse appears to be learning the file name, the folder, and the directory path of the unknown file in which the e-mail messages are stored.

My current operating system is Windows 7.  I believe that the original OS was Windows XP, but the OS has been upgraded once or twice.  With each upgrade to a new OS, I was able to import the e-mail messages.  I am therefore attempting to import messages stored in a Windows 7 e-mail program into another Windows 7 e-mail program.

I have an 800-page book explaining Windows 7, but neither the Table of Contents or Index seems to address my specific problem.  I continue to search for an answer from the book and the Help menu.