Windows update Yi Ruan Bluetooth HID Device driver update has broken Bluetooth on my PC.
Every time I try to pair my mouse or keyboard with the PC they appear, pair (though don't work) and then promptly vanish again. They work and pair with the hub during post and before login (ie, I can use the keyboard to type in my password) but once windows
desktop appears they cease to work.
Windows 7 64 PRO
Logitech Dinovo Media keyboard + MX 900 mouse
Had the same issue with a Microsoft Bluetooth Notebook Mouse 5000, mine would pair and be transmitting (the bt radio light showed the activity that the mouse usually generated) but not work at all.
If you get them paired successfully:
go into the BT devices window,
right click on the device icon, then:
properties>hardware tab>highlight "Bluetooth HID Device" in the list>click properties>Driver Tab
Here the Driver Provider SHOULD say Yi Ruan, Beijing etc.
Hit "Uninstall Driver", and MAKE SURE the "Delete Driver Files" box is checked!
Then go back to the BT devices window and remove the now ghostly device.
Then re-pair it. My mouse seemed to find the right driver on the auto update once I paired it again, but I suspect that you could hit the "skip this" link in the driver pop-up box if it pulls the Yi Ruan one instead, and use the older drivers that should
be on the computer already. The HID driver tab should say the provider is microsoft, now, if you go check it.
Hope this helped!