Windows 10: after installed device ,but the device manger show other devcices

i developed a usb device driver,when i installed ther device,and the device is working well,but in the device manger,the device inf file infomation classguid is lost.why can it happen???i open the regedit,and the the path dont have the classguid informationi set the class=usb and the classguid={36FC9E60-C465-11CF-8056-444553540000},but the path [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36fc9e60-c465-11cf-8056-444553540000}] do not have my device information.and also in the service,the Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\VID_1D6B&PID_0100\7&26

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my dvd / cd drive is not listed in device manger

i have installed win 10 and my drive works power going to it but not listed in device manger

 

Modem on HD Audio device not installed....

I just bought a Toshiba Equiem P200D 139 lappy which came with Vista. Having spent a couple of days with it its obvious that Vista is a bit too much for it (or maybe it was the pre-installed bloat...), so I've installed XP Pro on it. So far so good, its much more responsive now, and I've found most of the drivers for it (a bit of a chore since Toshiba don't list any XP drivers!!).

Device Manager only shows one remaining triangle, beside Modem on HD Audio device, and I just can't find a driver for it! Tried right clicking and update driver, which worked for a few devices, but this one obstinately refuses to work. Any ideas?*Bang Head :banghead:

 

No audio output device installed...

Hello Chris,

Let's determine the cause of the issue. To get started, we'd like to get the following information:

• What is the exact error message that you're getting?
• What are the troubleshooting steps have you tried so far?

In the mean time, let's check if there is a sound drive installed on your PC by following these steps:

• Open Device Manger.
• Expand Sound, video and game controllers.
• Check if there are sound card installed.

Note: If you think you have a sound card installed but you don’t see it under the
Sound, video and game controllers category, expand the Other devices category and check any devices listed there.

Looking forward to your response.