hi to all masters..
i have one Acer V5-561G which i newly bought
first of all i have installed it's windows which contain in it...originally...but when i did some partition changes i got Error code : 0x0000225
Window Boot Manager Error 0X0000225
i did everything but nothing worked at all..even alt+F10
then i searched for cause and finally i installed my own Windows 8 from DVD..
use legacy boot system and change GPT style from CMD in install menu to continue the installation...(use diskpart and convert to mbr!)
now i want to know how can I use my accer originall windows again?
nothing boot and work on UEFI boot system and says no media...and also alt+F10 don't work at all to restore my system..
is there anyway help me in this cause ?
did I format the original windows?
did i removed the hidden drive? 
any help...?