How to Solve This Issue

[Mohan2000]

My pc Modal Number Is  = 15-r036TU

Operating Sysrem is        = windows 10 64 bit 

                                                           Issue

I   am usin win dows 10 64bit   and now  i  want  to  go  back  on  windows  8.1  

During  windows  installation  i  get   eror  that  windows cannot be installed to the disk. the selected disk has an mbr partation table .on efi system , windows can only be instaleed to gpt disk  ...        

sir i want  to  install win 8.1  64bit  how i install without  losing data   , please  solve my issuee sir .

plzzzzz   give me fast reply  as soon as posible .

Thank u 

[visruth]

Hi,


"i want to install win 8.1 64bit how i install without losing data"

If you are clean installing Windows 8.1 on your machine using Microsoft windows media creation tool by creating bootable installation USB, you'll loose all your data in HDD as clean installation will format and install Windows from start.

You're getting that error because you didn't make installation USB UEFI bootable.

Also do the steps given in the Reformatting the drive using a different partition style section of this Microsoft document:
https://technet.microsoft.com/en-in/library/dn336946.aspx

Please follow this tutorial to create UEFI bootable Windows 8.1 USB: option 2
https://www.tenforums.com/tutorials/2376-create-bootable-usb-flash-drive-install-windows-10-a.html


Regards

Visruth

[Mohan2000]

Thanks For Replay  

i burned by usb by using  softwere which name is  iso2disk        

i   bured pandrive or usb  as  a  uefi   boot   it  still  shows  probleum   

plzzz    reply  sir  

Thank  u  

[visruth · Accepted solution]

Please follow suggestions given in my previous post. There is a Microsoft article I linked, you can go through it.