Windows Live Mail and Calendars

Windows Live Mail has stopped working

Prior to applying this patch, I had manually configured my Microsoft account as an IMAP account. 

This seems to indicate that it's the contacts/calendar sync that's causing problems, not mail accounts configured to use DeltaSync.

stopped working

Please see my reply to Joe and follow the troubleshooting steps if you're up for it. The more experience we get, the closer we'll be to making this work.

Had to uninstall and install again.       

That wasn't part of the troubleshooting exercise!  Which version do you now have installed? Press Alt-F B to see the version and build number.

... still have no syc with calendar

The calendar and contacts won't synchronize unless the patch is applied.

I applied the patch to my desktop with windows 10. Now when I open (windows live mail) it gets hung up on updating calendar and then get a message Windows Live Mail has stopped working,

Sorry to hear that. You're real guinea pigs, I'm afraid.

Whenever you see the message that ... has stopped working and needs to close, a crash report will be produced and recorded in the event log. This report will help us find out what's going wrong.

To find the crash report,

1. Press Windows key  + R, type eventvwr and press Enter. This should open Event Viewer.
2. Expand Windows Logs in the left-hand pane and select Application to see events raised by programs.
3. In the right-hand Action pane, click Filter current log, then in the Filter Current Log dialogue, select the Error check box and click OK. The list of events in the middle pane should now populate with the most recent hangs and crashes, marked 
4. In the Source column of this listing, look for Application hang or Application error around the time of the last crash, then click on it to reveal details of the error in the lower pane. Find the one that refers to wlmail.exe, then click on Copy towards the bottom of the Action pane and select Copy details as text.
5. Paste into your reply here.

To try and isolate the fault, try these steps to see which process it is that's causing the crash:

Phase I

1. Disconnect from the Internet (e.g. by disabling Wi-Fi or pulling out the Ethernet plug). This will prevent the program from trying to synchronize anything.
2. Launch the program, then use the right-most button on the Home tab of the ribbon to Sign out of Windows Live Mail. This will cause your default contacts list and calendar to load, instead of the ones belonging to the Microsoft Account you were signed in with.
3. If the account you were signed in with is also shown in the folder pane as a mail account, right-click on the account name and select Properties. On the General tab, deselect Include this account when receiving mail or synchronizing.
4. Do the same for any other Microsoft Email accounts (i.e. any @outlook, @hotmail, @msn, @live etc.) that may be showing in the folder pane.
5. Press Ctrl-Shift-O for Options. On the General tab, deselect both Send and receive messages at start-up and Check for new messages every ..., then click Apply and OK.
6. Close down Windows Live Mail and wait a few minutes while the program conducts its housekeeping.

We have now stopped most of the things that happen automatically on starting the program. Now to test:

Phase II

1. Re-connect to the Internet.
2. Launch Windows Live Mail and switch to the calendar window (Ctrl-2). You should see the default calendar, which might be empty.
3. Click on the right-most button on the ribbon and Sign in with the same account as you were using before. What happens? If you see an error message, please quote it in full.
4. If the program keeps running, switch back to the mail window (Ctrl-1), then click on the dropdown arrow on the Send/Receive button and select the same account as you just signed in with. What happens? Again, please quote any error message in full.
5. Repeat step 4 for any other Microsoft Email accounts.

We may eventually have to remove accounts that aren't working and add them back again, but I want to try and establish whether this is necessary or not. It wasn't on Windows 7.

I know that this looks daunting, but I assure you that it takes much longer to write it up than it takes to carry it out.

I had the same symptom as Joe S_849.  My account has been upgraded.  I installed the KB3093594 patch and now have the same problem as some others:  Live Mail no longer runs.  It says "Windows Live Mail has stopped working" while updating the calendar.  I am running Live Mail 2012 Build 16.4.3528.0331 on Windows 10 with updates automatically installed.  Is there a way to remove the KB3093594 patch, other than restoring a previous Windows restore point?  Thanks!