Thank you for contacting Intel Support,
I understand that you are having problems with your mouse after updating the Bluetooth driver to the version: 126.96.36.199, I apologize for any inconvenience this may be causing.
Regarding your issue I will need more information about your system. Please provide me with the following:
Once we have this we will be able to look a little deeper into the problem in order to best assist you.
I can confirm the issue with 188.8.131.52 (20.10.0_64)
Two days ago I did the update on my HP ProBook 440 G3 with 8260-wifi/bt and win10pro (1709). my mouse (logitech anywhere 2 mx) was very laggy and stagnant. i tried to re-pair my mouse but w/o success. the windows-bluetooth dialog said something would be wrong.
i uninstalled the 20.10.0 and reinstalled the 20.0.0. mouse works fine again.
There is a new Bluetooth® driver set to be released soon, so please continue using the version that is working for you in the meantime. Do keep in mind that our main recommendation is to use the latest driver provided by your computer manufacturer for your system, as that's the only version that accounts for OEM customizations.
As for the issue downgrading to the older driver. Please try the following:
1. Right click on the start menu icon and open Apps & Features (or Programs and Features in the Control Panel).
2. Locate the Intel® Wireless Bluetooth® Software and uninstall it.
3. Right click on the start menu icon and open Device Manager > Bluetooth® > Right click on the Intel® Wireless Bluetooth® and select to uninstall. If prompted, choose to "Delete the driver software for this device."
4. Download and install the generic driver version that worked for you, or engage your computer manufacturer to get their latest system specific driver for Bluetooth®.
1. Download Software for Intel® Wireless Bluetooth® Technology
2. Computer Manufacturer Support Websites
We hope this information helps.