Google "mysqld.exe CPU usage" and be amazed at how much comes up.  Seems to be a common problem, with a variety of solutions.  Malware masquerading as mysqld.exe was mentioned.
Hi, I have a new Dell Studio D 540 Desktop running Vista, and is it is running very slowly. I ran the 'task manager ' and did not see an issue, but when I reviewed the  'resource monitor 'it showed "mysqld.exe" using most of the CPU resources averaging 80% - 90%. I cannot find it on the computer by running an advanced search(showing all system and hidden files). I've gone to the Task Manager and to "msconfig" and can not find it listed. What does "mysqld.exe" do and how might I remove it?  Please advise.   Thank you
New Dell Studio D 540 & "mysqld.exe" File