Попробуйте этот алгоритм, мне он помог:
In the Service Pack 2, Microsoft included a generic Bluetooth driver, naturally being WHQL-certified. The WIDCOMM Bluetooth driver however is not WHQL-certified, so Windows XP continues using the generic driver. This interferes with the WIDCOMM Bluetooth software resulting in the above error. To force Windows XP to use the WIDCOMM driver, perform the following steps:
• Don't plug in the Bluetooth device yet.
• If you have any Bluetooth software apart from the included Windows drivers installed, deinstall them and reboot.
• Install the WIDCOMM BTW 1.4.2.10 Bluetooth software. When it asks you to plug in the Bluetooth device and click OK, don't, and click Cancel instead.
• When the WIDCOMM setup has finished, plug in your Bluetooth device and let Windows install the driver (there should be two Bluetooth icons in the system tray; one blue-white: this is the Windows driver - and one blue-red: this is the WIDCOMM driver which is deactivated).
• Now go to the Device Manager, right click on the "Generic Bluetooth Radio" and select "Update driver". Don't let Windows XP connect to the Internet, then select "Choose software from a list or specified location". In the next window, select "Don't search, but select the driver to install".
• In the next window, activate "Show compatible hardware" (if it isn't activated already) and select your manufacturer's driver instead of the "Generic Bluetooth Radio" driver. Click next until the new driver is installed. Now the WIDCOMM system tray icon should be blue-white as well, activated and ready to use. If you now double click on "My Bluetooth Places" (e.g. on the desktop), the WIDCOMM software installation will be continued and finished.
This should solve any compatibility issues with the WIDCOMM Bluetooth software and Microsoft Windows XP SP2.