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KB2884256 update fails, Dexcom driver install fails

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sptilton:
I found my computer has unused keyboard and mouse PS2 ports on back. I do not see these listed in the device manager,  but would guess they are the "HID-compliant consumer control device" and "HID-compliant device" under "Human Interface Devices" (see attachment). I will test to see if I can use a PS2  keyboard and mouse on these ports.   Let me know which devices in the previous post I should remove.

Thanks

Shane:
If you can use a ps2 mouse then remove them all, do all the usb ones first.

Shane

sptilton:
I tried your suggestion of uninstalling all the USB devices in the "Universal serial bus controllers".  This did not work. All failures still occur.

I am not sure I got all USB's,  but those were the only ones listed after changing mouse and keyboard to PS2.

I had shut down the computer and replaced the USB keyboard and mouse with PS2 types. When I turned it back on and locked in the Device Manager the only USB devices listed were under "Universal serial bus controllers". The one labeled "USB composite device" under this heading had disappeared. I think that might have something to do with the keyboard. Now there were eleven instead of twelve under this heading.

The "Human interface devices" and all devices under that headings disappeared.

The mouse and keyboard were now listed as PS2 and worked properly.
 

sptilton:
RE: USB keyboard and mouse drivers fail.

I shut down the computer to remove the PS2 devices and put back the USB keyboard and mouse. When I restarted, the drivers started to install, but the USB keyboard and mouse drivers failed. The keyboard and mouse  did not function. I rebooted and did a "restore point" using the Windows installation disc . This made the USB keyboard and mouse functional again.

Attached are some "Event Viewer" and "Problem Reports and Solution"  logs that may be relevant.

Shane:

--- Quote ---When I restarted, the drivers started to install, but the USB keyboard and mouse drivers failed.
--- End quote ---

Then that confirms it, the program is the USB and possibly its drivers. The USB itself is fine, it is the registry settings, keys and such in Windows that is messed up for it, and pretty much anything you try to have install over the usb simply fails.

So it is dexcon or Windows updates, but instead Windows itself. Problem is I dont have a clue what registry keys to look for because I dont know what Windows is looking at when it is installing drivers for a USB device.

So the fastest way is to do a repair install, not a fresh install. With a repair install you keep all your programs and settings. It does carry over drivers through, so curious if the problem will follow or get corrected.

But to do a repair install you need a vista cd with sp2 already on it. And then follow this :wink:
http://www.vistax64.com/tutorials/88236-repair-install-vista.html

Shane

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