Problem Resolved: I finally identified the root cause and resolved the issue late last night. For those who just want to know the simple basics, in case they have a similar problem, it was a a corrupt calendar database file; to be specific, WLCalendarStore.edb, which is located at “(store root folder)\calendars\DBStore”. The simple fix is to rename the file, something like WLCalendarStore.edb.bak, and then try to open the WLM app. This is all it took to properly fix the problem, and WLM app opened as normal again, with all of my accts, messages, and Storage folders intact. The app will generate a new default WLCalendarStore.edb, and if this fixes the problem, you can then delete the renamed corrupt file. You may lose some Calendar info, but you would anyway, if it is corrupt, and I have not been using the Calendar that much anyway. Too bad that it took me nearly a week to remember that the calendar database in MS mail apps is always a prime suspect if the app freezes when opening. I used to know this 10 years ago when I supported thousands of enterprise users, workstations, networks, and servers, etc. But I have forgotten so much now and my memory is not what it used to be....when you do not do this stuff on a daily basis, your skills decline quickly.
The rest of this story is more complex, and I will share a little...(too much happened to go into much detail.) To start, the problem could have been resolved within a minute, instead of a week, had I remembered to check what I explained above. Everything pointed to corruption within only my profile (if you read the details of my initial post). But I didn’t remember about MS mail apps calendar problems, so I spent a lot of time attempting to get to know the application better, as well as other system diagnostics. Let me say this about the WLM log files...if you are not trained to understand them, do not waste your time...I am not trained to understand them, and it was only frustration and wasted time. Remember that I had performed two successful repairs of the app, that did not fix the issue. I knew this anyway, because it ran fine within my wife’s profile. But after several days, I gave in, and completely uninstalled the app. This requires manually removing the default WLM store directory from the C:, and also the WLM directory within the registry, which is HKCU\Software\Microsoft\Windows Live Mail, after you have run uninstall from the control panel. I am not necessarily saying these steps are absolutely required in all cases, but that it is a complete removal. It is IMPORTANT to backup your entire windows live mail directory before you do this, if you have never changed it from the default location. Here is why you need to manually delete that directory if you have not changed the default store location. Windows uninstall will not delete it, as far as I know. If there is a corrupt file in there, when you reinstall the SW, it will go back to the same default location for the WLM store directory, which will result in the app still freezing when you try to open it. If you backup that folder, and then delete it, when the SW is re-installed it will have a fresh store to begin with. You could then later migrate elements of the backed up mail folder one at a time into the fresh install, such as accounts, storage folder, etc. Each time you do that, you would close the app., and then attempt to reopen it. If you migrate something in, and then the problem re-occurs, you just found where the corruption is, and you can remove it.
In my case, I have the mail store directory located on my D:, and not the default C: location. So here is some info I figured out during the week that some may find helpful, if WLM app will not open. A quick and simple method to see if the problem is a corrupted file within your WLM store, and not the app SW itself, go to the registry location mentioned above. Select the Windows Live Mail subkey so that all of its entries are seen in the right panel. Scroll down to the value named Store Root. If you double click it, it will open the edit string pop up window. NOTE: If you are unfamiliar with editing the registry, proceed with caution here. Make absolutely sure that you know the exact path to your current mail store. Copy it or make a note of it, so that you can change it back later if desired. Now, you can change the path to anywhere you want, that is simple for you...such as C:\My Mail\Windows Live Mail. It does not matter whether that path currently exists, it will be created when you make the change in the registry and then open WLM. If WLM now opens, you do not need to repair or re-install the WLM SW. You have corruption somewhere in your WLM store.
Foremost, if you cannot open WLM app, the very first thing I would do is to do the steps listed above for checking to see whether the Calendar DB file is corrupt. I believe that often, that will nail the problem right there. If that does not work, then I would proceed to the next step of changing the store path in the registry. If WLM still will not open after that...(go to the place in explore where you created the new store folder and make sure that it is actually there, it should be, and then go back in the registry and make sure the path is still changed there)...if it still does not open, then I would use windows uninstall to do a repair of Windows Live....if there is actually corruption with an app file, such as a dll file, that should fix the problem. If all else fails, then I would un-install the SW, manually delete the default WLM store folder, and manually delete the WLM subkey in the registry, and then re-install the SW. That should definitely fix the problem, but then you have to go through the hassle of migrating everything again, and I have a very large Storage Folder, which is why I did not want to go that route. Actually, to think of it, if the app itself is hosed, and nothing in your WLM store is corrupt, then I would just be certain to have copied the entire contents of the store directory into a different location. Then after re-installing and opening WLM, just go into the advanced mail options where you can point it to where you backed up/relocated the entire “store”, which will have all of your accts, folders, and messages. NOTE: Make certain that you do not delete the backed up store, only the default location. Close WLM and when you open it again, you should have everything back to normal and it should be seamless, without having to migrate/move all those files again, unless you just want to.
I know this is a lot of info, but will hopefully save someone some time and headaches in the future.