Kronos MIDI has dissappeared on my Win 10 computer! (solved)
Posted: Sat Apr 14, 2018 7:24 pm
The MIDI ports from the Kronos have suddenly disappeared from my Windows system. The computer is Windows 10 / 64 bit version 1709
The Kronos is still enumerated in USB. Under Sound, video, and game controllers, I see:
KORG KRONOS (KORG KRONOS)
KRONOS (USB Audio Device)
I tried multiple Windows applications that use MIDI, and they all showed my other MIDI devices, but not the Kronos.
I downloaded the latest USB drivers from korg.com and installed DrvTools_1_15_r23e.exe
I rebooted the computer, and restarted the Kronos - no change.
The Korg driver utility looks like this:
I tried 32 bit, 64 bit, and Both for MIDI in settings, but none of those settings worked.
It looks like this in USBDevView:
Here are the settings in Device Manager:
What is "Device Migrated"? What is KORGUMDS?
The full information is:
What does it mean "Present: false"? What is not present?
Can anyone look at their USB settings in Windows 10 and see if there is any difference, or anything obviously wrong in mine?
I haven't changed anything, but Microsoft is always updating Windows, so maybe that is part of it?
Anybody else having issues with Windows updates?
Edit; taking the date of the "Device Migrated" event and cross checking in the system logs, I see that KB4090914 was applied that day.
Searching on that KB takes me to this article, which implies it may have USB issues.
Edit2; I tried uninstalling and re-installing the drivers - did not help.
While looking at the drivers, I found EzSetup64.exe in C:\Program Files (x86)\KORG\KORG USB-MIDI Driver. It runs "Korg MIDI Driver Setup Utility". I select the Kronos, and it reports "The Device Driver was not installed properly". Still no Kronos MIDI.
Edit3: In the same folder, I ran "K_CoInst64.exe" (Co-Installer). It didn't seem to do anything. However, I then ran EzSetup64.exe again, selected the Kronos, and this time it said "The Device Driver was installed properly". Sure enough the Kronos MIDI is back!
Sheesh - I spent most of a day working on this issue. IMHO, way to difficult. I went back to the driver download to see if I missed the "README.TXT". Install instructions are this:
The Kronos is still enumerated in USB. Under Sound, video, and game controllers, I see:
KORG KRONOS (KORG KRONOS)
KRONOS (USB Audio Device)
I tried multiple Windows applications that use MIDI, and they all showed my other MIDI devices, but not the Kronos.
I downloaded the latest USB drivers from korg.com and installed DrvTools_1_15_r23e.exe
I rebooted the computer, and restarted the Kronos - no change.
The Korg driver utility looks like this:
I tried 32 bit, 64 bit, and Both for MIDI in settings, but none of those settings worked.
It looks like this in USBDevView:
Here are the settings in Device Manager:
What is "Device Migrated"? What is KORGUMDS?
The full information is:
Code: Select all
Device USB\VID_0944&PID_0203&MI_03\7&32df62c6&1&0003 was migrated.
Last Device Instance Id: USB\VID_0944&PID_0203&MI_03\7&32df62c6&1&0003
Class Guid: {4D36E96C-E325-11CE-BFC1-08002BE10318}
Location Path:
Migration Rank: 0x0
Present: false
Can anyone look at their USB settings in Windows 10 and see if there is any difference, or anything obviously wrong in mine?
I haven't changed anything, but Microsoft is always updating Windows, so maybe that is part of it?
Anybody else having issues with Windows updates?
Edit; taking the date of the "Device Migrated" event and cross checking in the system logs, I see that KB4090914 was applied that day.
Searching on that KB takes me to this article, which implies it may have USB issues.
Edit2; I tried uninstalling and re-installing the drivers - did not help.
While looking at the drivers, I found EzSetup64.exe in C:\Program Files (x86)\KORG\KORG USB-MIDI Driver. It runs "Korg MIDI Driver Setup Utility". I select the Kronos, and it reports "The Device Driver was not installed properly". Still no Kronos MIDI.
Edit3: In the same folder, I ran "K_CoInst64.exe" (Co-Installer). It didn't seem to do anything. However, I then ran EzSetup64.exe again, selected the Kronos, and this time it said "The Device Driver was installed properly". Sure enough the Kronos MIDI is back!
Sheesh - I spent most of a day working on this issue. IMHO, way to difficult. I went back to the driver download to see if I missed the "README.TXT". Install instructions are this:
I hope this helps someone else. More detailed instructions and troubleshooting guides for the driver would be helpful.If you use Korg USB-MIDI Device except Grandstage:
Run DrvTools.exe to install.