Question about Toshiba Satellite P15-S420 Notebook

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My com port disappeared

Device Manager no longer shows that I have a com port. According to Device Manager, all I have is one LPT port. How do I reinstall my com ports?

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  • tspivak May 30, 2009

    How do I restore it to factory settings? I don't have the OS disks. They didn't come with the computer.

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  • 166 Answers

Yeah such problems happens when com port versions are mismatched with OS supporting drivers.

So in that case, you should repair you OS or restore it to FACTORY settings.

By doing this you will be able to regain your all configuration for all ports available.
I hope this will work out for your problem.

Rate this solution if it was helpful to you.
With Regards,
Shyny

Posted on May 29, 2009

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I just set up a serial Hi-Pro box for one of my customers on their new laptop. According to Beltone, the only usb adapter that will work with the Hi-Pro (or at least the only one they have gotten to work) is a Belkin F5U409. I know some usb serial adapters don't use true serial communications if that makes any sense, so there isn't really a baud rate. They kind of just send out the communication in bursts...

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