Các tính năng được cải tiến : Support for newer hardware (boot order allowance, SD card improvements, USB debugging) Additional hardware support (devices that have third-party disk encryption software enabled can now be upgraded to Windows 8.1 more easily) Improved Web Services for Devices (WSD) printer support during network switches Refreshed language packs Performance and reliability improvements in clustered virtual machine mission-critical environments Improved manageability Defence-in-depth security and Schannel hardening
Khắc phục các lỗi thường gặp ở Windows 8.1 : "0x0000009F" Stop error when you connect a dock or a keyboard to a device in Windows RT 8.1 Excel freezes for a short time when you open an Excel workbook on a network share in Windows 8.1 or Windows RT 8.1 Bluetooth device cannot reconnect to the computer in Windows 8.1 or Windows RT 8.1 You cannot print an A3 size document in Windows 8.1 or Windows 7 You cannot eject media or "Safely Remove Hardware and Eject Media" icon does not appear You encounter some OneDrive issues in Windows 8.1 and Windows RT 8.1 New page cannot be displayed in OneNote app in Windows 8.1 or Windows RT 8.1 Some MOV files cannot be played in Windows 8.1 Update to support AAC and LATM format audios in Windows 8.1 or Windows 8 Update to support UHS-1 SD cards in Windows 8.1 Update for MPEG4 parser to support YouTube DRM playback in Internet Explorer 11 Windows Hyper-V improvement for Linux virtual machines that have file systems that are larger than 2 TB You cannot perform token-based activation in Windows 8.1 You cannot connect to WSD printers if your network profile is set to public You cannot open the Windows Store without an Internet connection You receive User Account Control dialog box unexpectedly in Network "0x0000009F" Stop error when you put the computer in sleep mode or hibernation Shortcut menu does not appear when you right-click Start Start screen can be customized unexpectedly after you apply update 2919355 on a Windows 8.1 Pro-based computer Notification dialog boxes are not high-DPI aware on a high-DPI device Application crashes when you input text at the beginning of multiple lines Miracast display resolution changes after you shut down and then restart a Windows 8.1-based computer The system does not enter Connected Standby after you install update 2996799 in Windows 8.1 Solid lines instead of dotted lines are printed in Windows 8.1 Memory usage becomes high when you run an application in Windows 8.1 or Windows 8 Screen flickers when you close a window in Windows 8.1 or Windows Server 2012 R2