Hi Fernando, I much appreciate your help. However, this did not solve my problem.
Let me go through it with you:
I do not have (or do not know how to find) a "My Computer" option. If I type My Computer into the search box it takes me to the Control Panel. From there I can go to "Devices and Printers", where I find the icon for "Unknown USB device".
If I right-click on this and click Properties, I get a box with only two tabs: "General" and "Hardware". There is no "Tools" tab. Under the "Hardware" tab it says: "Device status: Windows has stopped this device because it has reported problems (Code 43)"
There is another Properties link within that box, which takes me to another box with the following tabs:
General - Driver - Details - Events.
Under Events I found the following report:
Device USB\VID_0000&PID_0002\5&8b74c98&0&2 was not migrated due to partial or ambiguous match.
Last Device Instance Id: USB\VID_054C&PID_0BC7\180E2961030454
Class Guid: {36FC9E60-C465-11CF-8056-444553540000}
Location Path: ACPI(_SB_)#ACPI(PCI0)#ACPI(XHC_)#ACPI(RHUB)#ACPI(HS02)
Migration Rank: 0xF000FFFFFFFF0032
Present: false
Status: 0xC0000719
Does this help you to take me any further.