Pinaki :. I do have a printer but it is hooked up to a usb port. The only device connected to a serial port is the Palm cradle. I had a major problem with my pc and contacted Microsoft Support. They had delete my user profile and set up a new one, this was on July 4th. I followed you directions above, when I started device manger using devmgmt. It still only shows com4 anf 5. See if this helps in getting the ports to list.
Install the latest drivers for your motherboard. See if this proves to be of any help. Device manufacturers often release updates to their drivers to enhance performance or fix compatibility issues. Verify if they are enabled or disabled. Microsoft cannot guarantee that any problems resulting from the configuring. Hi Pinaki :. I tried following your 3 suggestions and have outlined what happened. Appreciate you efforts. Virus Protection [ Back to Top ]. It would be better if you can check if ports are disabled in BIOS.
To check so, I would recommend you to contact the manufacturer of the computer. Threats include any threat of suicide, violence, or harm to another. Any content of an adult theme or inappropriate to a community web site. Any image, link, or discussion of nudity. Any behavior that is insulting, rude, vulgar, desecrating, or showing disrespect.
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Details required : characters remaining Cancel Submit. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. Hi Jacobs, This could be due to the fact that the COM ports are being used by some other process or devices. Please assist me with the following information related to this issue: 1 Have you connected any other device such as a printer to the computer?
Follow the steps: a Type cmd on the Start screen and right click on Command Prompt. You just have to follow the below steps to install the driver on your computer. Tutorials : If you want a tutorial related to Android flashing, then head over to our Tutorial Section , where you will find lots of stuff related to Android.
The device driver tells the computer how to properly handle data communications between the computer and the hardware USB device. When one of these meters is plugged into a computer, Windows automatically connects to the meter without requiring an external device driver. If the hardware device is connected to a computer via a wired or wireless IP network connection, the computer does not require a device driver for that device.
If the hardware device has an RS serial connection and is directly connected to a computer serial port, the computer does not require a device driver for that device.
However, since most computers no longer provide a serial port, a serial hardware device will usually be connected to a computer via a USB to serial converter. In that case, the computer needs to have a device driver installed to properly communicate through the USB to serial converter. The computer sends data to and receives data from the USB port on the converter.
The converter translates that data, through its serial port, to a serial hardware device. The computer requires a device driver to tell it how to properly handle data communications with the USB port on the USB to serial converter.
A data buffer is included within some USB to serial converters. The data buffer improves the reliability of a device interface at high data rates. Many USB to serial converters without a data buffer do not provide a reliable interface between Calman and hardware devices. The FTDI converters have been tested with all hardware devices supported by Calman and have been certified to provide a reliable interface in all cases.
The required device driver can often be obtained from the hardware device manufacturer. Device manufacturers may package a device driver with the device or they may provide a device driver download on their device support page.
If you will only ever connect one or two USB devices to a Calman computer, you may wish to obtain the device driver for your device s directly from the device manufacturer. For convenience, SpectraCal provides a Device Driver Pack that includes device drivers for most of the hardware devices supported by Calman.
To ensure that you have the proper driver, or if you will be connecting a number of different USB devices to Calman, you may wish to download the Calman Device Driver Pack from the Calman Download page to install all supported device drivers on the Calman computer. Installing the SpectraCal Device Driver Pack on a Calman computer automatically installs and registers the included device drivers for Calman supported hardware.
Installing a driver that you obtain directly from a device manufacturer also automatically registers the device driver in Windows. When a hardware device is then connected to the Calman for the first time, the proper device driver is automatically associated with the device. Many currently available device drivers have not been tested and certified by Microsoft.
These drivers are referred to as unsigned device drivers. If you are installing an unsigned device driver in Windows 7 or earlier, a Windows Security dialog will open to give us a choice of whether or not to install an unsigned device driver. If you feel comfortable with the source of your device driver file, you will probably want to select the Install Anyway option.
If you are installing an unsigned device driver in Windows 8. After a normal reboot, Driver Signature Enforcement will re-enable. Any drivers that were installed while it was disabled will continue to function.
When a USB-controlled hardware device is connected to a computer, Windows first needs to recognize the device and properly connect to it.
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