MSDTC 53258 error after dcpromo

Run the Component Services MMC snap-in: Start -> Administrative Tools ->
Component Services

Browse to: Console Root -> Component Services -> Computers -> My Computer

In Component Services, right click on My Computer, and click "Properties".

Select the "MSDTC" tab. On the bottom of the tab page, click the "Security
Configuration" button. A new dialog will open. Just click "OK" to close the
dialog (I believe this may set the MSDTC defaults). Then click "OK" to close
the first dialog and try restarting the MSDTC service and see if the warnings
still occurr.

Then as a test, restart MSDTC (net stop msdtc && net start msdtc) and check
the application event log. You should not see any warnings as before.