EM Library: scheduler service fails to start

The EM Library scheduler service fails to start and returns an error code:

Error 0x80040503 is displayed in the event log if the service attempted to start automatically,
Error 2147220221 or 2147747075 is displayed in a dialog box if you attempted to start the service manually.

EM Library scheduler errors may also be seen in the event log on the server (or the computer hosting EM Library).

What to do

Locate and delete the file ssdata.idx. By default this is located in C:\Program Files\Sophos Enterprise Manager\Library\bin.
Open EM library and recreate the schedule.
If necessary, go into Windows services, and ensure that the EM Library scheduler service starts.

If you need more information or guidance, then please contact technical support.