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All replies
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Helpful answers
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Dec 26, 2015 10:05 PM in response to Cubifiedby Loner T,★Helpful1. 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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Dec 26, 2015 9:41 PM in response to Loner Tby Cubified,It's a 2014 MacBook Pro Retina. I just tried plugging in the external hard drive before starting Boot Camp, and it worked. However, Windows 10 does not recognize the external hard drive when it is hot plugged in. Is restarting the only workaround?
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Dec 26, 2015 9:58 PM in response to Cubifiedby Loner T,The 2014 Mac should allow hot-plug. Are there any unknown devices in Windows 10 Device Manager (yellow triangle with exclamation mark)?
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Dec 26, 2015 10:07 PM in response to Loner Tby Cubified,When I open the Device Manager, there isn't a yellow triangle with an exclamation mark. Windows 10 isn't recognizing that there's something plugged into the Thunderbolt port. I'm not even sure if Windows 10 knows that there is a Thunderbolt port.
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Dec 26, 2015 10:17 PM in response to Cubifiedby Loner T,If you restart Windows, look in Device Manager and check for any PCI devices including your TB LaCie.
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Dec 26, 2015 11:05 PM in response to Loner Tby Cubified,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.

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Dec 27, 2015 7:01 AM in response to Cubifiedby Loner T,After you re-connect, can you right-click and scan for hardware changes?
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Dec 27, 2015 9:06 AM in response to Loner Tby Cubified,I was able to right-click and scan for hardware changes, but all it did was cause the Device Manager window to flicker.
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Dec 27, 2015 10:57 AM in response to Cubifiedby Loner T,Are you able to see file systems on the LaCie?
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Dec 27, 2015 11:18 AM in response to Loner Tby Cubified,Yes, I'm able to see the files on the LaCie, but only after I plug it in and restart the computer. If I unplug it and plug it back in, the files still appear but are unable to be opened. If I hot plug it, the LaCie doesn't show up at all.
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Dec 27, 2015 11:30 AM in response to Cubifiedby Loner T,Please try a SMC and NVRAM Reset and test.
Resetting the System Management Controller (SMC) on your Mac - Apple Support
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Dec 27, 2015 12:16 PM in response to Loner Tby Cubified,I did both resets and the LaCie drive still isn't showing up.
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Dec 27, 2015 1:47 PM in response to Cubifiedby Loner T,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?
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