【已解决】Failed to acess the USB subsystem

ghfujianbin

虚拟机用的一直是VBOX，遇到这个问题很久了，不过不影响日常使用，也就没放在心上。今天就是想弄个明白，所以来问问大家有没有遇到这个问题的，谢谢。

ghfujianbin

1. This problem is related to a USB Driver conflict in the Host computer. It occurs due to a filter made by AMD.
   
2. This issue can occur because unknown USB drivers are installed on the Windows machine HOST or due to conflicting USB software or registry entries.
   
3. 
   
4. These are procedures to clear this problem. Most important is the item "D" to manually uninstall the AMD USB filter.
   
5. 
   
6. A. Ensure that your host computer is using the original, Microsoft USB drivers:
   
7. 1. Right-click (My) Computer and click Manage.
   
8. 2. In the left pane of the Computer Management window, select Device Manager.
   
9. 3. Expand Universal Serial Bus Controllers.
   
10. 4. Right-click USB Root Hub and click Properties.
    
11. 5. On the Driver tab, click Roll Back Driver.
    
12. B. Confirm that you are not using any conflicting USB services such as monitors (sniffers) on your host. For more information, see Configuring Windows Hosts for Use with USB Monitors (Sniffers) (1679).
    
13. 
    
14. C. If you have an AMD processor, there may be a conflicting USB controller. It is recommended to remove the AMD USB Filter Driver from the Windows Device Manager:
    
15. 
    
16. Warning: This can cause other USB devices to fail. Be sure to make a System Restore point before attempting this step. Alternatively, rather than trying a system restore, you can restore the USB controller you deleted in this step by clicking Scan for New Hardware in Device Manager. For more information about System Restore, see these Microsoft articles:
    
17. * Windows XP: http://www.microsoft.com/windowsxp/usin ... store.mspx
    
18. * Windows Vista, 7: http://www.microsoft.com/windows/window ... store.aspx
    
19. 
    
20. To remove the conflicting USB controller:
    
21. 1. Right-click (My) Computer and click Manage.
    
22. 2. In the left pane of the Computer Management window, click Device Manager.
    
23. 3. Expand Universal Serial Bus Controllers.
    
24. 4. Locate the AMD USB Filter Driver.
    
25. 5. Right-click it and choose Uninstall.
    
26. 6. Click Uninstall the driver software for the device.
    
27. 7. Restart your computer
    
28. 
    
29. D. If you are unable to remove the AMD USB controller through the Device Manager, you can also uninstall it manually.
    
30. You should backup the Windows registry before modifying it. For more information, see the Microsoft Knowledge Base article 322756.
    
31. 
    
32. To manually remove the AMD USB controller:
    
33. 1. Open the Windows registry, by clicking Start > Run and typing regedit.
    
34. 2. Navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000} .
    
35. 3. In the right hand panel, if the the UpperFilters entry exists, delete it.
    
36. 4. Go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\ .
    
37. 5. Delete the usbfilter string.
    
38. 6. Close the Registry
    
39. 7. Delete this file: %system32%\drivers\usbfilter.sys.
    
40. 8. Reboot your computer.
    
41. 
    
42. E. You can also use the ATI Catalyst Install Manager to uninstall AMD USB controller.
    
43. To do so:
    
44. 
    
45. 1. Open Control Panel.
    
46. 2. Open Add/Remove Programs (XP) or Programs and Features (Vista/7).
    
47. 3. Double-click ATI Catalyst Install Manager or click Change.
    
48. 4. Select Uninstall Manager.
    
49. 5. Choose a Custom.
    
50. 6. Select the AMD USB controller as the component to uninstall.
    
51. 7. Reboot if prompted.
    
52. 
    
53. References:
    
54. Search for "Host USB device connections disabled" (This is the very same problem occurring with VMware)
    
55. http://kb.vmware.com/selfservice/micros ... Id=1016809
    
56. 
    
57. Hope this may help. Please report if you could fix your box.

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找到解决方法了 原来是和AMD的USB Filter驱动冲突了 回头试试

原帖地址： http://forums.virtualbox.org/viewtopic.php?f=6&t=43541

好像新版本会修复这个问题