Microsoft's Surface Pro 4 July update comes complete with game breaking bugs

Microsoft’s Surface Pro 4 is once more experiencing bugs, once again caused by Microsoft’s inadequately tested Windows updates.Many users have reported the Surface Pro 4’s touch functionality to have debilitated after the update, including touch and pen support.

The thread maker on Microsoft forums describes the issue as follows:

All of the keyboard/pad functions are working including zoom, scroll etc. but no screen-touch or pen response (pen button clicks still open pre-chosen programmes as they should)
After being shut down will only start up with long hold on power switch.
It now takes ages to restart (used to start in a few dreamy seconds). Begins with completely black screen for about 20 seconds and no visible signs of turning on (lights on Fn key for instance) then the SURFACE screen, then the ring and eventually lock screen.
Seems to use the fan more often (it even continued after shut a few times).
In device manager the Firmware has an exclamation mark on Surface ME saying: This device cannot start. (Code 10) – An attempt was made to change the attributes on memory that has not been committed.
Trouble shooter detects this but can not solve it.
The pen/ink section of the Surface App says: the Surface app needs an updated component from Windows Update in order to enable this feature

Other users concur, citing similar experiences on their own Surface Pro 4 devices which began after installing the July firmware update. A Microsoft rep said, “Thank you for your feedback. We understand the concern and are actively investigating. We will update this response once a fix has been published. Please continue to check for Surface and Windows Updates to ensure your device has the most current firmware and software available.”

We anticipate that Microsoft plans to fix these bugs in upcoming Windows updates either this month or the next.

Source: Microsoft Answers via The Register