Filter
Top Products
9
Changing COM Port Number
Some serial devices need a specific COM port in order to
work. If your serial device works properly, do not change
this setting.
This option is not available in Windows ME , 98SE and 98.
Windows 8 / 7 / Vista / XP / Server 2003 & 2008 /
Server 2008 R2 / 2000
1. From Device Manager double click Ports (COM &
LPT), then double click the USB to Serial or Prolific
USB to Serial port you want to change.
2. Click Settings tab, then click Advanced.
3. Click the down arrow that is next to the COM Port
number box and select a COM port that is not in use.
Click OK.
4. Click OK again. Close Device Manager to save the
changes.