Windows 10 missing first keystrokes from Microsoft Designer Bluetooth Keyboard after Fall Creators' Update

Oh, and let me just add:

It's very annoying having to force myself to wait 3 seconds before I start tying every time!!

Re Power Management changing these settings has been mentioned as a possible fix. There are power settings in:

Device Manger>Bluetooth>Intel(R) Wireless Bluetooth(R)>Properties>Power Management

Device Manger>Human Interface Devices>Bluetooth Low Energy GATT compliant HID device> Properties>Power Management (There will be one entry for the keyboard and others for other devices e.g. a Bluetooth mouse)

Device Manger>Keyboards>Designer Bluetooth Keyboard>Properties>Power Management

I have tried various combinations of the Power Management settings e.g., turning all settings of “Allow the computer to turn off this device to save power” off everywhere associated with the keyboard and non of them fix the problem.

Still a very annoying pen issue.

Hi Evin,

If you're still experiencing the Bluetooth keyboard issue even after re-installing the keyboard's driver, there is a possibility that we may need to update the version of the Bluetooth driver. This the reason why we also want you and other community members to use another Bluetooth keyboard for us to isolate if the issue is with the specific Bluetooth keyboard or with every Bluetooth keyboard. If you do not have a spare or extra Bluetooth keyboard, we recommend updating the driver of your computer's Bluetooth to resolve the issue.

Kindly tell us if you can use your keyboard normally after updating the Bluetooth driver.

I have already tried to update the driver, but Windows says the latest driver is installed.  The MICROSOFT DESIGNER KEYBOARD AND MOUSE is new hardware.  The FCU broke it, and Microsoft needs to fix it!

I use a Microsoft Surface Book.  The keyboard on the Surface Book does not exhibit this problem.  I have TWO Microsoft Designer Bluetooth Keyboards - one at home and one at work.  Both keyboards (one purchased only two months ago) exhibit the same problem when used with the Surface Book.  I do not have another type of Bluetooth keyboard to test with.

Again, this problem occurred ONLY after updating to the Windows 10 Fall Creators' update.  The problem did NOT occur before.

While it would be optimal to test with a different brand or model of Bluetooth keyboard, given that the problem started occurring at the same time for two people on three different PCs with four of the exact same model of keyboard seems, to me, a smoking gun.

For me, particularly frustrating since I'm exclusively using Microsoft products.

I ran the Microsoft Easy Fix for "Find and fix problems with devices and hardware". While this made some (unidentified) changes that required a reboot, the keyboard issue remains unchanged.

Do you have other suggestions?