To summarize and close the ticket The first one relates to Intel's Wireless Bluetooth. Installed: That didn't solve it. Installed "Intel PROSet/Wireless 3160 Bluetooth, Network_driver_87MDD_WN32_17.1.1529.1620_A02.EXE" which solved it.   The second one relates to Intels SM (System Management) Bus controller. Installed: That didn't solve it. Via Intel community I got the following instruction:"Now, if things are done in the wrong order (i.e. package not installed before connecting to Windows Update), you may need to do a replacement install of the Chipset Device Software package. To do this, do the following: As the other two installs, this one was successful, no error codes or likewise. But it didn't solve it. Continued to fiddle around and went to Windows Update and its Optional updates. Found "Intel - Other hardware - Mobile 5th Gen Intel Core SMBus Controller - 9CA2" and installed it. That one solved it. Device Manager now clean. 
Hi there, Helping out a friend with an old Dell Inspiron 15 3558. Made a clean, new installation of Win 10 on a fresh partitioned and formated hard drive. We had four Unknown devices in Device Manager and solved two of them by installing related old Dell drivers. Two to go.... The first one I don't really know what it is and the last one I thought would be solved by installing Intel-Chipset-Device-Software_5MPRF_WIN_10.1.18121.8164_A09.EXE but it didn't. Any ideas? May have done wrong translations from the Swedish information into the English terms but I  hope you get it anyway.   1. Unknown device Device type: Other Manufacturer: Unknown Location: Port_#0006.Hub_#0002 Driver not installed (code 28)   Information Path to device: USB\VID_8087&PID_07DC\5&705CAFC&0&6 Hardware ID: USB\VID_8087&PID_07DC&REV_0001 and USB\VID_8087&PID_07DC Compatible ID: USB\Class_E0&SubClass_01&Prot_01, USB\Class_E0&SubClass_01 and USB\Class_E0 ... Name on physical device: \Device\USBPDO-4 ...     2. SM buss controller Device type: Other Manufacturer: Unknown Location: CI-buss 0, enhet 31, funktion 3 Driver not installed (code 28)   Information Path to device: PCI\VEN_8086&DEV_9CA2&SUBSYS_06B01028&REV_03\3&11583659&0&FB Hardware ID: PCI\VEN_8086&DEV_9CA2&SUBSYS_06B01028&REV_03, PCI\VEN_8086&DEV_9CA2&SUBSYS_06B01028, PCI\VEN_8086&DEV_9CA2&CC_0C0500 and PCI\VEN_8086&DEV_9CA2&CC_0C05 Compatible ID: PCI\VEN_8086&DEV_9CA2&REV_03, PCI\VEN_8086&DEV_9CA2, PCI\VEN_8086&CC_0C0500, PCI\VEN_8086&CC_0C05, PCI\VEN_8086, PCI\CC_0C0500 and PCI\CC_0C05 ... BIOS device name: \_SB.PCI0.SBUS   ...  
Two missing drivers after reinstall of Win 10 on Inspiron 3558