After attempting to print a Ticketek confirmation report, the error Spooler Subsystem App error appeared and also removed the installed printer from the list. Has anyone else encountered this issue before. I have re started the Spooler app in the services list but to no avail and suspect corruption of the spoolsv,exe and/or SDIMF32.DLL files. Any help would be greatly appreciated.

Updated    Did a defrag and everything good now.  Not going to think about why that should fix it but all good now.