Microsoft have released Update 1 for Windows 8.1:
Improvements
This update includes the following new features and improvements:
Enables a more familiar mouse and keyboard functionality for modern apps and controls.
Improves the web application compatibility of the Internet Explorer 8...
compatibility
cumulative update
device management
enterprisemode
error
hardware support
internet explorer
known issues
microsoft
mobile management
multi-screen
performance
prerequisites
reliability
security
servicing stack
update
usability
windows 8.1
windows server
