Microsoft watcher Mary Jo Foley states that the rollout of the Windows 8.1 Update 1 has been delayed from March to April because Microsoft needs a bit more time to finalize the update. The rollout is expected to occur on the second Tuesday of April, to coincide with the usual Patch Tuesday distribution. Soft watcher Mary Jo Foley claims the rollout of Windows 8.1 Update 1 has been delayed from March to April because Microsoft needs a bit more time to finalize the update. The rollout is expected to occur on the second Tuesday or April, to coincide with the usual Patch Tuesday distribution. Windows 8.1 Update 1 is a collection of features and fixes for Windows 8.1. Most of the new features are aimed at making Windows 8.1 more palatable to those who prefer using a mouse to navigate the latest Windows release. A leaked Windows 8.1 Update 1 test build (from mid-January) showed off a number of the expected new features, including the ability to pin Metro apps to the Desktop task bar; new right-clickable context-sensitive menus; and adding dedicated search and power buttons to the Start screen. A new Enterprise Mode for Internet Explorer 11 is also part of the leaked build, according to some who've downloaded it.