I did solve my problem: I uninstalled the newly updated driver and reinstalled the old one already present in my tablet.
If you search around (I cannot recover the info at the moment) there are several forums that report the latest stable driver version.
I'm no expert, but I guess if you didn't fiddle much, after you uninstall the driver, and find the device on device manager, you can choose to install the driver, and choose to manually select a location from your device: and the location will be automatically set where your drivers are (as it happened to me).
I also solved the problem with the camera on my Asus T100TA.
For some reason, the Window Updates (including the recent 15014 build) over-writes the driver for the camera. How I fixed it was by downloading the Intel SOCPackage Intel_BayT_T100TA_Win81-32-VER112.zip driver package, and running it.
Once you start running the package, you may get a message that states the drivers about to be installed are either the same or earlier that what is installed, and ask if you want to continue. If you want your camera back, say "Yes" (or you can select the individual "Camera" driver from the Drivers folder on the zip file).
Once it's finished, reboot. Your camera should be working again.
Here is the download site I used:
http://www.allinonedriver.com/asus-transformer-book-t100-drivers-download/
Scroll down to the Driver Download section, and select the "Chipset Drivers". These may not be the most update drivers, but they will get the camera working again.
If there is someone who knows how to get a more current set of drivers, please let us know.
Thank you!