Slow Bug from Bob Eisenberg sender-time Sent at 7:06 AM (GMT-06:00). Current time there: 5:20 AM. ? reply-to beisenbe@rush.edu to Bob Eisenberg , Bob Eisenberg date Mon, Dec 13, 2010 at 7:06 AM subject Slow Presentation Font remove FontCache* mailed-by gmail.com hide details Dec 13 (8 days ago) Slow CPU It's hard to identify based on provided data what is the cause of high CPU usage. One of the reasons could a big number of fonts (expect the ones that originally shipped with OS). You could try stopping the service, deleting the file it creates: Windows\ServiceProfiles\LocalService\AppData\Local\FontCache4.0.0.0.dat and restarting the service to check if that helps. Proposed As Answer byBrandon Furtwangler - MSFTModeratorFriday, March 27, 2009 8:15 PM