SOLVED: Failed to access the USB subsystem on Windows 7 host
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- Posts: 5
- Joined: 5. Jun 2009, 13:01
- Primary OS: MS Windows 7
- VBox Version: OSE other
- Guest OSses: XP, Vista, 2008 R2, 2008, Dos 6.22
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
I am running 4.1.2 on a Windows 7 x64 host and I'm getting the same error as the OP. The symptoms are that my guest OS starts, but after logging in it just freezes solid.
I have tried the USB driver fix, but my two USB Root Hubs are both running MS drivers with no roll back available. Shall I try the test build too?
I have tried the USB driver fix, but my two USB Root Hubs are both running MS drivers with no roll back available. Shall I try the test build too?
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
The test build provided above should solve this.Ryster wrote:I am running 4.1.2 on a Windows 7 x64 host and I'm getting the same error as the OP.
I think you're mixing multiple problems here. Do you have some USB devices attached to guest? What guest os are you running? Please attach the VM session log.Ryster wrote:The symptoms are that my guest OS starts, but after logging in it just freezes solid.
What USB driver fix did you try and why do you expect your USB rut hubs to be running non-MS drivers? they should be MS by default..Ryster wrote:I have tried the USB driver fix, but my two USB Root Hubs are both running MS drivers with no roll back available.
Yes in case you have the same error as the OP.Ryster wrote: Shall I try the test build too?
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
TrustPort Internet Security 2012 - (12.0.0.4800) I am not trying to filter explicity nothing. Trustport has a sort of agent that when I insert a Pen Drive (or a CD, any removable) it offers to scan it. I have an usb web cam also, but I guess that should not interferemisha wrote:The tpdevflt seems to come from one of TrustPort Security products. What TrustPort Security products (and which version exactly) do you have installed? Also what USB devices are you trying to filter (i.e. attach to guest)?ElQuia wrote: ...
Value 6
Name: UpperFilters
Type: REG_MULTI_SZ
Data: tpdevflt
...
Please also specify the host OS version you use.
Host OS: Windows 7 x64 SP1
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Weird, installed that package on Windows 7 x64, but did not get that tpdevflt installed, perhaps it gets installed for some specific hardware, or perhaps it comes from sole older distribution..ElQuia wrote:TrustPort Internet Security 2012 - (12.0.0.4800)
In that case I wonder if it is not related to the USB fix. Could you re-check whether you have any usb device filters specified for a VM, i.e. in "USB" tab of VM settings GUI.ElQuia wrote: I am not trying to filter explicity nothing.
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
This 7 x64 is a fresh install, trust port has updated but original build was just a couple of weeks ago, still same major version (2012)misha wrote: Weird, installed that package on Windows 7 x64, but did not get that tpdevflt installed, perhaps it gets installed for some specific hardware, or perhaps it comes from sole older distribution..
Yes, I have an empty filter (a.k.a. "New Filter 1") and my web cam, "USB20 CAmera [0100]"In that case I wonder if it is not related to the USB fix. Could you re-check whether you have any usb device filters specified for a VM, i.e. in "USB" tab of VM settings GUI.
BUT, I did have the same usb filters on older vbox version and IT WORKED CORRECTLY, in fact, webcam even worked (tried it on XP vm and Linux Mint VM)
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Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
I'm having the same issue as op, but I don't have and USB filter and all of my drivers are Microsoft original s. I'm running windows 7 32 bit. Had the same issue with vmware but there's no fix. Will this hopefully fix my issue? Ill give it a try
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- Joined: 22. Aug 2011, 07:06
- Primary OS: MS Windows 7
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Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Just wanted to say thank you for the fix, 4.1.3 is working fine and finding my usb plug ins, as long as I don't check the check box for the usb mouse
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Empty filter means "capture all USB devices you have attached to host" is it what you really intend to do on VM start?ElQuia wrote:Yes, I have an empty filter (a.k.a. "New Filter 1")..
To simplify my bug seach, could you please try installing the pre-4.1 VBox version that worked for you and run a VM with exactly the same USB filter settings (including the empty one) and ensure device capturing works correctly there (i.e. all USB devices attached to host get captured by a VM and visible in a VM).ElQuia wrote:BUT, I did have the same usb filters on older vbox version and IT WORKED CORRECTLY, in fact, webcam even worked (tried it on XP vm and Linux Mint VM)
This will help to determine whether this is a regression (in case capturing works there) or some issue caused by some recent changes to your system.
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Maybe can to on weekend. Anyway it will NOT be the same. Between 4.012 and 4.1 I was on an "old" 7 x64 system (was installed since 7 beta). Since then I went back to 4.012, did a fresh 7 install of my host and am now on 4.1.2. Don´t know if comparison will be valid.misha wrote: To simplify my bug seach, could you please try installing the pre-4.1 VBox version that worked for you and run a VM with exactly the same USB filter settings (including the empty one) and ensure device capturing works correctly there (i.e. all USB devices attached to host get captured by a VM and visible in a VM).
This will help to determine whether this is a regression (in case capturing works there) or some issue caused by some recent changes to your system.
Advise please
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
That explains it all. I can tell you with 99.99(9)% that pre4.1 VBox will not work for you either because of the tpdevflt filter you have installed. You won't get the "VERR_FILE_NOT_FOUND Failed to access USB subsystem" error, but you won't be able to attach any USB device to guest system.ElQuia wrote: ...Anyway it will NOT be the same. Between 4.012 and 4.1 I was on an "old" 7 x64 system (was installed since 7 beta).
The reason 4.012 worked for you was apparently that you did not have that filter driver installed.
So apparently it's tpdevflt filter driver that causing problems for you. I'm going to try to have it installed and reproduce the issue here.
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
@ElQuia: Could you also dump the contents of the "HKLM\System\CurrentControlSet\Services\tpdevflt" registry key here? Or better export it as a .reg file (right-click the key in regedit and select "Export..") and attach that .reg file here?
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
But if that filter is installed by TrustPort (must be the feature it has that any time you insert a removable disk, be that usb or cd or mount an external hdd, or whatever a dialog pop ups asking to scan now the drive or not.misha wrote:ElQuia wrote: VBox will not work for you either because of the tpdevflt filter you have installed. You won't get the "VERR_FILE_NOT_FOUND Failed to access USB subsystem" error, but you won't be able to attach any USB device to guest system.
The reason 4.012 worked for you was apparently that you did not have that filter driver installed.
So apparently it's tpdevflt filter driver that causing problems for you. I'm going to try to have it installed and reproduce the issue here.
If it is as you say I got a new AV (old one was eset smart sec) and a lot of trouble?
No way of vbox circumventing that driver?
Because if you really look at it, it IS a REALLY practical feature in this age of malware....
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
The extension reg is not allowed. There they Gomisha wrote:@ElQuia: Could you also dump the contents of the "HKLM\System\CurrentControlSet\Services\tpdevflt" registry key here? Or better export it as a .reg file (right-click the key in regedit and select "Export..") and attach that .reg file here?
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Well, that's what I'm trying to do now.ElQuia wrote:But if that filter is installed by TrustPort (must be the feature it has that any time you insert a removable disk, be that usb or cd or mount an external hdd, or whatever a dialog pop ups asking to scan now the drive or not.misha wrote:ElQuia wrote: VBox will not work for you either because of the tpdevflt filter you have installed. You won't get the "VERR_FILE_NOT_FOUND Failed to access USB subsystem" error, but you won't be able to attach any USB device to guest system.
The reason 4.012 worked for you was apparently that you did not have that filter driver installed.
So apparently it's tpdevflt filter driver that causing problems for you. I'm going to try to have it installed and reproduce the issue here.
If it is as you say I got a new AV (old one was eset smart sec) and a lot of trouble?
No way of vbox circumventing that driver?
Sure, but if you ask me, there are ways of intercepting removable media arrival/departure w/o having usbhub filter driver installed, so don't know what it is needed exactly for.ElQuia wrote:Because if you really look at it, it IS a REALLY practical feature in this age of malware....
Re: SOLVED: Failed to access the USB subsystem on Windows 7 host
Well I am not into programming (grin) so I wouldn't know maybe it does some low level stuff, but I think it just sits there monitoring removable insertion and pop us a request when that happens... It does NOT block access to the removable even if you keep up open the pop up dialog.misha wrote: Sure, but if you ask me, there are ways of intercepting removable media arrival/departure w/o having usbhub filter driver installed, so don't know what it is needed exactly for.
Ok, thanks and I´ll wait for your instructions