Event ID 1 for Intel Bluetooth Wireless High Speed after Windows Update

After the automatic update for Windows I received the following error message in the Event viewer, telling me that Intel Bluethooth Wireless High Speed has to be reinstalled after the update.
How do I reinstall Intel Bluethooth Wireless High Speed on my notebook?
Source: ApplicationExperienceInfrastructure
"Bei der Anwendung (Intel Bluethooth Wireless High Speed, von Lieferant Intel) sind folgende Probleme aufgetreten: Um eine einwandfreie Funktion zu gewhrleisten, muss Intel Bluethooth Wireless High Speed nach der Aktualisierung von Windows neu installiert werden."
+ System
- EventData
DBType 15
AppNameCount 36
AppName Intel Bluetooth Wireless High Speed
VendorNameCount 6
VendorName Intel
SummaryCount 149
Summary Um eine einwandfreie Funktion zu gewhrleisten, muss Intel Bluetooth Wireless High Speed nach der Aktualisierung von Windows neu installiert werden.
SessionID 0

Yeah, I tried it exactly as described.
I use the Satellite U940-11X (PSU6SE) which has as network adapters the Realtek PCIe FE Family Controler and the Intel Centrino Wireless Adapter N 2230. The OS platform is Windows 8, 64bit.
I first uninstalled the existing Intel Bluetooth driver, then the Intel ProSet Wireless software.
I downloaded the newest software from Intel's website which is:
- BT_2.6.1212_e64.exe, version 2.6.1212, 19-3-2013, for the Intel bluetooth software and
- Wireless_15.6.1_e64.exe, version 15.6.1, 19-3-2013, for the Intel PROSet/Wireless Software and Drivers
I have installed both software packages correctly and did not receive any error messages.
The installation seems to be faultless.
However, the bluetooth switch in PC settings (wireless tab) remains gray.
I cannot switch it from off to on.
In the device manager the bluetooth button is listed under hidden devices.
Where is the mistake?
Is it possible that my notebook requires specially modified drivers from the Toshiba website and/or additional drivers like to "bluetooth filter driver package" provided by Toshiba for my notebook model?
As to the bluetooth filter driver package it reads on the website that this driver is needed to enable bluetooth on your Atheros wlan-combo-card.
I am confused now because the notebook Satellite U940 11X (PSU6SE) doesn't have the Atheros card.
Any advice for me?
Thanks in advance
Rafu
Message was edited by: Rafu

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