Appeance – > editor
Select  Twenty Twelve: Stylesheet (style.css)
find Media queries
change “@media screen and (min-width: 600px) ” to “@media screen and (min-width: 0px) ”
change “@media screen and (min-width: 960px) ” to “@media screen and (min-width: 0px) ”

update and wait a few minutes

boot up using a windows 8.1 media (usb/dvd)

Choose advance / command prompt

diskpart
*find the volume to be boot & assign it to letter C where C:\windows locate
list volume
Select volume X (with letter C)
*If X = the correct volume to boot ,
active
*If X does not = the correct volume to boot
remove
select volume Y (the volume to boot)
assign letter=c
active
exit

bcdboot c:\windows /s c:

*maybe

bootrec /fixmbr
bootrec /fixboot
bootrec /scanos\
bootrec /rebuildbcd
bcdboot c:\windows
bcdboot c:\windows /v

repair startup

*other options
bcdedit /set {default} device partition=c:
bcdedit /set {default} osdevice partition=c:
bcdedit /set {bootmgr} device partition=c:

add missing resolution in virtualbox using OSX terminal

This tutorial teach you how to create some KEYS and DWORD by using Windows Registry Editor in Microsoft Windows 10 TP Build 9860 to disable  and re-enable the Search button on the task bar.