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hntdtt 0 Newbie Poster

Help me please.
My PC is connected to a Olivetti printer through COMM1 port and I installed driver for the printer, but after do this, i can not program to open comm port in C#. The Error display: The given port name does not start with COM/com or does not resolve to a valid serial port

(I use Device Manager of Windows to uninstall driver and can open COMM port, but when i restart windows OS, my PC still is conflicted as at first).

or you can help me to write a program, which can uninstall driver in device manager automatically when windows os is started, Instead of using manual device manager of windows

Thanks,
All the best

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