Solved NVMe shows as Removable in Windows


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BrianInEngland said:
Any idea where I would find this in the registry?
Click to expand...

I found the CacheIsPowerProtected and UserWriteCacheSetting DWORD settings for this below, but the exact key value will vary for you. You'll most likely need to restart the computer afterwards to apply.

NVMe.webp
 

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Brink said:
I found the CacheIsPowerProtected and UserWriteCacheSetting DWORD settings for this below, but the exact key value will vary for you. You'll most likely need to restart the computer afterwards to apply.

View attachment 124834
Click to expand...
None of the internal disks have 'Disk' showing under Device parameters!
These look like the settings for safe removal/write cache rather than whether the disk is actually fixed or removable?
 

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BrianInEngland said:
None of the internal disks have 'Disk' showing under Device parameters!
These look like the settings for safe removal/write cache rather than whether the disk is actually fixed or removable?
Click to expand...

Correct. That also determines if a drive is considered removable or not.

Considering you don't have these settings for the NVMe in the registry, it sure smells of some BIOS setting.
 

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Brink said:
Correct. That also determines if a drive is considered removable or not.

Considering you don't have these settings for the NVMe in the registry, it sure smells of some BIOS setting.
Click to expand...
Yes it looks that way, there doesn't seem to be any way to change it though
 

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BrianInEngland said:
Yes it looks that way, there doesn't seem to be any way to change it though
Click to expand...

Whenever I clean install (or repair install) my system always installs the Phison NVMe 1.2 Storport Miniport storage controller
for all my drives making them all report as removable on the "safely remove" icon.
I switch them all to the Standard NVMe Express Controller and they no longer report as removable.
Just something to look into.

1739136643402.webp
 

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Scott said:
Whenever I clean install (or repair install) my system always installs the Phison NVMe 1.2 Storport Miniport storage controller
for all my drives making them all report as removable on the "safely remove" icon.
I switch them all to the Standard NVMe Express Controller and they no longer report as removable.
Just something to look into.

View attachment 124845
Click to expand...
Good suggestion but nope. Samsung don't use their own controller drivers
 

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XxXxX said:
i found this which maybe of help.

best of luck, Steve ..
Click to expand...
The Asrock quote about the way the USB/Thunderbolt are tied to the CPU and M2 is telling.

"Although not certified for Thunderbolt, this motherboard actually has an Intel USB4 Controller (Maple Ridge). We tied that controller to the CPU. Just like M2_1, Thunderbolt requires hot plug support.
Because both are tied to the CPU, we cannot disable hot plug for one and keep it enabled for the other."
 

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Aramil said:
The Asrock quote about the way the USB/Thunderbolt are tied to the CPU and M2 is telling.

"Although not certified for Thunderbolt, this motherboard actually has an Intel USB4 Controller (Maple Ridge). We tied that controller to the CPU. Just like M2_1, Thunderbolt requires hot plug support.
Because both are tied to the CPU, we cannot disable hot plug for one and keep it enabled for the other."
Click to expand...
Yes it seems to be a common thing with USB4, which needs the fast pci lanes. As the second M2 slot on my board shares with USB4 it will show as hot-pluggable in Windows - it's either nvme x2 with USB or nvme x4 with USB disabled
 

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Got same issue on MSI MAG B850 Tomahawk Max board. My 980 Pro 2TB plugged in M2_2 slot is detected as removable drive on Windows 11. There are no options on BIOS to disable hot swap on that port, neither is there any setting about thunderbolt. Wish there was a way to just disable this crap from displaying in registry.
 

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From all the comments this looks like something MSI needs to correct in BIOS if it is possible.
 

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steveg said:
From all the comments this looks like something MSI needs to correct in BIOS if it is possible.
Click to expand...
It's likely due to the lane-sharing with USB4 which has a hop-swap requirement. USB4 enabled - the drive runs on x2 lanes, USB4 disabled - the drive runs on x4 lanes, I expect the two 'shared' lanes are hot-swap hard-wired so Windows will always detect the drive as removable
 

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BrianInEngland said:
It's likely due to the lane-sharing with USB4 which has a hop-swap requirement. USB4 enabled - the drive runs on x2 lanes, USB4 disabled - the drive runs on x4 lanes, I expect the two 'shared' lanes are hot-swap hard-wired so Windows will always detect the drive as removable
Click to expand...
Yeah that's how the Tech person on the MSI forums described it, basically you get more M2 drives connected to the higher speed CPU lanes, but you have to live with them being on Shared hot swap lanes. it a by product of them adding USB4/thunderbolt support to AM5.
 

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Marking this as Solved - MSI released a new BIOS which fixes this issue.
My NVMe drive is now showing as a Fixed disk in Windows.
 

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ASUS TUF Gaming VG289Q
Screen Resolution
3840x2160
Hard Drives
Samsung 9100 Pro 4TB (gen 5 x4, system drive/games)
Samsung 990 Pro 2TB
Samsung 980 Pro 2TB
Samsung 870 Evo 4TB
Samsung 870 Evo 2TB
Samsung T9 4TB
PSU
Seasonic PX-2200
Case
Bequiet! Dark Base Pro 901
Cooling
Noctua NH-D15S Chromax black
Keyboard
Logitech G915 X (wired)
Mouse
Logitech G903 with PowerPlay charger
Internet Speed
900Mb/sec
Browser
Microsoft Edge
Antivirus
Windows Defender
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