I am trying to install Windows 10 Tech Preview : WindowsTechnicalPreview-x64-EN-US.iso 3.81 GB (4,100,497,408 bytes), have checked sha1 also.
But I am not able to install even after repeated attempts.
Below is the system info and my Bios options available in my laptop. Summary: Windows 8.1 x64, Legacy Bios with MBR File System.
More Details and updates on my adventurous journey on the below problem here on MDL Forum's Thread:
A. Trying to do clean Install using Flashable USB Drive
Commands used to prepare the usb flash drive using Diskpart utility:
list disk, select disk 3, clean, create partition primary, format fs=fat32 quick, active, assign, then simple copy paste contents from mounted iso file
Note: Current File System is MBR and current OS is Windows 8.1 Pro 64bit
Trial 1: BIOS Settings: UEFI BOOT SUPPORT Disabled and PXI OPROM Disabled/Enabled tried both
Stuck At Windows logo without the round cursor while booting as below:
Trial 2: UEFI BOOT SUPPORT Enabled
No Windows Logo Appears, Directly It starts with Loading files, Loading Files Completes and then It goes to black empty screen and gets stuck there.
Trial 3: I even tried to use Rufus Tool using following setting, but even here No Luck
B. Trying to upgrade from the existing Windows 8.1 x64 OS
Also when I try to install simply by clicking setup.exe in the usb flash drive created above, it starts installing asks what to keep like personal files.. And goes till 88% after which it says system will restart in few moments and then it restarts for the first time while restarting it stucks at the windows logo itself and doesn't proceed further, I waited for 10 mins there bit still remains stuck, so did force reboot using power buyton and then laptop starts previous Windows 8.1 and then says could not Install Windows Technical Preview.
Just to verify if my flash drive has some problem, I created Windows 8.1 Installation Disk using diskpart fat32 file system with the same commands as above
And guess what when I try to boot using this: It Boots up within 40 seconds when the windows logo appears in following conditions :
UEFI BOOT SUPPORT Disabled, PXE OPROM Enabled/Disabled