usb - Install Windows 10 in UEFI mode without pen drive

Current Installed OS: Windows 7 x64 In UEFI mode

Motherboard: Asus H81M-CS In UEFI Mode

Wanted: To Install Windows 10 Pro x64 Version In UEFI Mode

Problem is: The ISO is of 3.80 GB and my pen drive is of 3.77 GB only!
So I cannot install make pen drive bootable through Rufus

So is there any way to install windows 10 UEFI from ISO without pen drive - through a partition of my HDD? or any work-around?

Answer

Okay, so it’s really easy, at least with a proper UEFI firmware:

1. Create temporary partition near the end of your disk


2. Format it with FAT32 (important!)


3. Copy over files from Windows ISO


4. Reboot and bring up the boot selection menu


5. Select the appropriate entry that does not read “Windows Boot Manager”

If you don’t get the required boot entry, or all you can get to boot is Windows 7, try with rEFInd on your USB drive. You can put the image (“A USB flash drive image file”) on your USB drive using Rufus or any other image writer.

In rEFInd, the boot entry will look like this: