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•If an exclamation point is displayed next to a Communications Port, or if you wish to change resources:
1.Change resources for existing devices.
2.Click on a listed COM Port device. Go to Properties and “Disable in This Hardware Profile” under the General tab. When you return to Device Manager, a red X is displayed next to the device you just disabled.
3.Free up an IRQ. Check with the hardware manufacturer of the device you want to remove.
NOTE: If you make any changes in Device Manager, shut down your system when done, power off, then power back on your computer.
