Explorer causing 100%/High CPU usage on mpeg files Tuesday, April 8, 2003 at 7:23 pm Windows XP Annoyances Discussion Forum Posted by Terry Parker (5 messages posted) When I run explorer and have a directory with mpeg files in it, if I select the file (even right-clicking to rename), all of a sudden my system (P4 2.4ghz) begins to CRAWL. If I have performance monitor running, in about 3 seconds it will show explorer using up 100% of the CPU cycles. After about 30 seconds, the system comes back and everything is fine (if I manage to finish the rename, for instance, the keyboard is slow to respond, but I can get through it, and after the rename the system will still be slow for another 20-30 seconds). I've searched here and I'm using DMA (this is a Raid 0 array). I found a "tweak" on the web about explorer and AVI files slowing the system down, so I removed the specified registry key, but no change. This is a fairly "fresh" system, and has been going through lots of XP "updates" and it appears to have begun after one of these, but unfortunately I cannot be sure. Would really appreciate any insight, it's driving me nuts. Responses to this message: re: Explorer causing 100%/High CPU usage on mpeg files (Ricer46: Tuesday, April 8, 2003 at 10:03 pm) re: Explorer causing 100%/High CPU usage on mpeg files (sean molyneux: Tuesday, January 18, 2005 at 6:15 am) All messages in this thread [show all] Explorer causing 100%/High CPU usage on mpeg files (Terry Parker: Tue, Apr 8, 2003, 7:23 pm) re: Explorer causing 100%/High CPU usage on mpeg files (Ricer46: Tue, Apr 8, 2003, 10:03 pm) re: Explorer causing 100%/High CPU usage on mpeg files (Terry Parker: Wed, Apr 9, 2003, 5:21 am) re: Explorer causing 100%/High CPU usage on mpeg files (sean molyneux: Tue, Jan 18, 2005, 6:15 am) Reply or follow-up to this message Search this forum Start a new thread on a different subject Report abuse of the forum Return to the Windows XP Discussion Forum