Tuesday, 13 August 2013

Windows 7 PC - disable sending data to com ports at bootup

Windows 7 PC - disable sending data to com ports at bootup

We have a Windows 7 pc connected via com 1 to a scale head. Windows 7
outputs data at boot up to the com port and scambles the scale head's
configuration which has to be re-configured. We have disabled Serial Mouse
Detection in the registry. When testing the com 1 port to a laptop running
Hyper Terminal, we can see characters output to the screen. How do we
disable all output at boot time to a com port?

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