COM port listed in Device Manager after modem is removed due to port existence.
Cause:
The COM port is not removed when the modem is removed. If the port does not physically exist on the computer, it needs to be removed in 'Device Manager'.
Solution:
Use the 'Device Manager' tab found in the 'System' settings in 'Control Panel' to remove the COM port.
1) Click the 'Start' button to display the 'Start' menu.
2) Select 'Settings' and select 'Control Panel'. (The 'Control Panel' window appears.)
'Control Panel' menu item
3) Double-click the 'System' icon. (The 'System Properties' dialog box appears.)
The 'System' icon
4) Click the 'Device Manager' tab.
5) Double-click the 'Ports (COM & LPT)' icon. (The branch expands to show the types of ports available on the computer.)
The 'Ports (COM & LPT)' icon
6) Select the COM port to remove.
7) Click 'Remove'. (The 'Confirm Device Removal' dialog box appears.)
8) Confirm the removal of the COM port by clicking 'OK'.
9) Click 'Close' to close the 'System Properties' dialog box.
