When I close the Windows Mail program, it prompts me with:

“Windows Mail can compact the message store.  This may take up to a few minutes. OK or Cancel”

When I click OK, then:

“Compacting the Windows Mail database” message appears, but a few seconds later when the progress bar is about 50% done, the following message appears:

“Windows Mail has stopped working.”

And then:

“Check online for a solution and restart the program” or “Restart the program.”

Clicking on Problem Details reveals the following explanations:

Problem signature

  Problem Event Name:                        BEX

  Application Name:                             WinMail.exe

  Application Version:                           6.0.6000.16386

  Application Timestamp:                     4549b0f9

  Fault Module Name:                          StackHash_ea8f

  Fault Module Version:                        0.0.0.0

  Fault Module Timestamp:                  00000000

  Exception Offset:                                00000001

  Exception Code:                                  c0000005

  Exception Data:                                   00000008

  OS Version:                                          6.0.6000.2.0.0.768.3

  Locale ID:                                             1033

  Additional Information 1:                  ea8f

  Additional Information 2:                  0cc38d82a5cbf36977b21a87669d36c4

  Additional Information 3:                  1960

  Additional Information 4:                  0664d6129a7b254fb7d4319f387ac813

And then a popup appears with the following message:

“Windows Mail was closed. To help protect your computer, Data Execution Prevention has closed Windows Mail. Click to learn more.”

When I click Cancel to the very first prompt , Windows Mail shuts down with no problems.