Uploading errors using windows xp

Projects Programming
4

I tried to restart the computer and received the following error again:

Binary sketch size: 12,986 bytes (of a 32,256 byte maximum)
processing.app.SerialException: Serial port 'COM5' already in use. Try quiting any programs that may be using it.
	at processing.app.Serial.<init>(Serial.java:171)
	at processing.app.Serial.<init>(Serial.java:77)
	at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:77)
	at processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:175)
	at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67)
	at processing.app.Sketch.upload(Sketch.java:1671)
	at processing.app.Sketch.exportApplet(Sketch.java:1627)
	at processing.app.Sketch.exportApplet(Sketch.java:1599)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2380)
	at java.lang.Thread.run(Thread.java:619)
processing.app.debug.RunnerException: Serial port 'COM5' already in use. Try quiting any programs that may be using it.
	at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:101)
	at processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:175)
	at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67)
	at processing.app.Sketch.upload(Sketch.java:1671)
	at processing.app.Sketch.exportApplet(Sketch.java:1627)
	at processing.app.Sketch.exportApplet(Sketch.java:1599)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2380)
	at java.lang.Thread.run(Thread.java:619)

In the device manager the COM port for the Uno is COM5 which is the selected COM port in the IDE. Also when I disconnect the arduino and plug it back into the computer the device manager still shows that it is under COM5