Hey Apolo,
To uninstall the driver for the MTP device you are trying to use you will need to open the device manager. You can open this snap-in by clicking on start and typing "Device", then selecting the
Device Manager from the list. Once you have the Device Manager open you can look for your device in the list. The iPhone I was using was located under
Portable Devices > Apple iPhone. Once you have located the failed device ,
right-click the device and choose uninstall.
To uninstall the windows update you will need to open the Uninstall an Update window. To open this click on start and type "installed updates" then select "view installed updates" from the list. Once this window is open
using the Search Installed Updates box at the top right, search for
KB2685813. Once the update is found right-click
it and choose uninstall.
So, to recap all you should try:
- Open Device Manager
- Locate failed MTP USB device
- Right click device and uninstall driver
- Open Uninstall an Update window
- Search for KB2685813
- Right-click update and choose uninstall
- Shutdown computer
- Unplug all USB devices
- Power up computer
- Plug in standard USB flash drive
- Plug in portable device.
Regards,
Sam Fraser
Dear Sam,
Thank you very much for putting so much effort into this problem. I followed your instructions, uninstalled the MTP USB and KB2685813. Upon restart I verified that both MTP and KB2685813 were not present on the PC. Yet when I plugged in the Andorid phone
(which used to work in the past) I got the same failure message: MTP USB Device Failed.
Seems like I tried everything under the sun. Previously I was working with a Microsoft technical support representative on this issue. She had me run various traces that recorded events at the driver level of the operating system. All in all I sent her about
4-5 very long trace files. And in the end she didn't help me. It seems like a very simple problem: plain vanilla desk top PC running well established OS, Windows 7. Hardware is working properly, passes all hardware tests for USB, other USB devices work properly
from the same USB port on the PC. The problem showed up after some OS software updates.
Anyway, thank you again for your suggestion.
Apolo