Thank you for posting your other message about the same problem on this computer with an LR200 camera, as it helps with diagnosis.
Given that your computer meets the minimum specification for the cameras, and you are having a detection failure with both the SR300 and LR200, it is highly likely that the problem is related to the USB ports of your PC. If the PC is not reliably supplying the USB port with power (i.e fluctuations are occurring) then the camera connection drops and an installer such as the DCM program cannot detect it.
Sometimes the problems are caused by an update downloading and installing in Windows. Most of these cases affect the SR300 camera model, so the fact that both of your cameras have detection issues leads me to think that the problem is not with Windows.
Many people have fixed detection problems instantly by plugging the camera into a mains-powered USB 3.0 hub instead of directly into the PC's USB port. These hubs are available from stores such as Amazon for around $15 by searching for 'powered usb 3.0 hub'. A small number of people have also fixed their detection problem by plugging the camera into an ordinary unpowered hub.
There was also a recent case where a Macbook user achieved the same effect as a mains-powered hub by attaching the camera to their Macbook's external USB-C to HDMI/USB extension.
This message was posted on behalf of Intel Corporation
I was wondering if you could check the suggestion provided by MartyG.
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