INSTALL WINDOWS 7 OVER PRE-INSTALLED WINDOWS 8 LAPTOP

Question

Hello everyone i am Raj 
Q.
 Anbody have worked with MBR AND GPT  ?
is their anyway  to install windows 7 on pre-installed windows 8 laptop from company .
problem  is :-
1.)when you try to installed windows 7 it will say "windows cannot be installed on this disk because this disk is GPT partitioned .
2.)dilemma is that you cannot convert a partition in MBR but you can convert a whole disk .
3.)The recent UEFI support's windows 7 as a dual boot but that too x64 .
i  have tried every possible solution that a Windows technician   could do :D
NOTE :-
Important thing is that only C:\\  drive should be formatted in which we want's to install windows 7  and rest of the data of other drives must be safe 
but still if any body get the job done PM me  
My situation :-
i have formatted my c:\\ drive where i was having windows 8.1
i wanted it to be roll back to windows 7 Seriously but this problem does not allowing ME TO have that 
and please don't  suggest to have a clean install 
:P
i will be eagerly waiting for the reply 
if anybody get the job done please take a time and PM 
ME AT 
{removed PII}@hotmail.com

Answer 1

Hi,
I think it is quite difficult to install Windows 7 overriding the pre-installed Operation System without formatting the hard disk.
Because as you descripted in the post, your computer is booted with a UEFI firm ware, but your hard drive is not configured for UEFI mode, you cannot just convert one partition, you have to format the whole hard disk for
UEFI by using the GPT partition style, this lets your use the PC’s UEFI firmware feature, more details can be found at :
http://technet.microsoft.com/en-au/library/dn336946.aspx
All data should be backed up before you install Windows 7 to override the pre-installed Operation System.
Regards
Wade Liu
TechNet Community Support