bMicrosoft Windows 8.1

by Ching-Wan Yip

Last Updated: October 25, 2013 3:06 PM

First published: Oct 17, 2013

released: 2013/10/18



Specific Devices

Microsoft Surface Pro


Microsoft Surface RT

handwriting recognization doesn't work at first, suddenly work again later

RT recovery image


Windows 8.1 "support" center - coming soon - Last Updated : 30 Sep 2013, yikes

Windows 8.1 Upgrade Capable Systems

Windows 8.1 Upgrade Guide

Driver Updates

Lenovo ThinkPad Helix

Lenovo ThinkPad X1 Carbon

pending Enterprise license approval

Lenovo ThinkStation D20

pending Enterprise license approval

Asus Taichi DH21

tablet mode does not work, blank screen.

temporarily work around

system touch settings error after upgrade

need to reinstall wireless and bluetooth (and another device, that message disappeared later and not archived) - BT not available at intel site, download from asus

Sony VAIO Pro 13 SVP132A1CL

several drivers updates now said need to be updated before install Windows 8.1 upgrade (not well planned, release AFTER users already upgraded) very unhappy customers

e.g. VAIO Control Center Update
Release Date 10/18/2013
File Size 21.41 MB
This utility installs an updated version of the VAIO® Control Center software to add support for the Windows® 8.1 operating center and resolve an issue where the VAIO Event Service may not function after entering sleep mode, shutdown, or a restart of the computer will cause the brightness function to not operate properly.

worst so far is

if you let screen dim, it will not come back, have to hard reboot. VAIO Control Center update seem to fixed. (even it didn't show in control panel, programs as updated)

external display resolution seem to be wrong also. Doing 1080p mirror over Miracast, still said 720p

several device manager problems

these "work"

action center only show two need to be updated