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Question: Thunderbolt Port Not Working in Boot Camp 6.0

Hello! I am experiencing difficulty trying to get Windows 10 on Boot Camp 6.0 to recognize my LaCie external drive that is connected through the Thunderbolt port. The external drive is running, but Windows 10 doesn't recognize it. The Boot Camp 6.0 installation did have a hiccup, which gave me the following message: "Windows Installer has stopped working", but after clicking through the error, everything else went smoothly. Is anyone else having trouble getting Thunderbolt devices to be recognized by Windows 10?

MacBook Pro with Retina display, OS X El Capitan (10.11.2)

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Dec 26, 2015 10:05 PM in response to Cubified In response to Cubified

1. What year/model is your Mac?

2. Please see Thunderbolt ports and displays: Frequently asked questions (FAQ) - Apple Support, especially this part.


1. Are Thunderbolt devices “hot pluggable” using Windows with Boot Camp?

Thunderbolt hot plug is supported under Windows 8 or 8.1 on all 2014 and later Mac computers.

For all other Mac computers, Windows 7, 8, and 8.1 scans and activates Thunderbolt devices connected to Thunderbolt ports only during the Windows startup process. If your device was not plugged in at start up, Windows will not detect it without a restart.

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Question marked as Helpful

Dec 26, 2015 10:05 PM in response to Cubified In response to Cubified

1. What year/model is your Mac?

2. Please see Thunderbolt ports and displays: Frequently asked questions (FAQ) - Apple Support, especially this part.


1. Are Thunderbolt devices “hot pluggable” using Windows with Boot Camp?

Thunderbolt hot plug is supported under Windows 8 or 8.1 on all 2014 and later Mac computers.

For all other Mac computers, Windows 7, 8, and 8.1 scans and activates Thunderbolt devices connected to Thunderbolt ports only during the Windows startup process. If your device was not plugged in at start up, Windows will not detect it without a restart.

Dec 26, 2015 10:05 PM

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Dec 26, 2015 11:05 PM in response to Loner T In response to Loner T

I checked the Device Manager and found the them listed under "Portable Devices" after I restarted my computer. However, when I unplug the devices to try hot plugging it, the files are no longer available even though they are still listed under "Portable Devices." Below is an image of what is showing up.User uploaded file

Dec 26, 2015 11:05 PM

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Dec 27, 2015 1:47 PM in response to Cubified In response to Cubified

1. Does the LaCie show up properly when hot plugged on the OS X side?

2. From the OS X side, can you post the output of diskutil list?

3. If you connect a USB or Firewire disk to Windows as hot-plug, does it show up correctly?

Dec 27, 2015 1:47 PM

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Dec 27, 2015 2:18 PM in response to Cubified In response to Cubified

Notice the Connection being reported as SATA. The TB layer is just passing protocols. It can also pass PCIe, DisplayPort, Ethernet, Firewire (why Intel would not allow USB is quite amusing. It has some interesting consequences. The older InfiniBand was similar). What is the total disk size of the LaCie?


As a test, format a USB Flash drive as Mac OSx Extended Journaled, and connect it when Windows is booted. Does it show up correctly?

Dec 27, 2015 2:18 PM

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Question: Thunderbolt Port Not Working in Boot Camp 6.0