Using EFI to boot a Win7 from a hard disk (USB drive)

Only 64-bit system after Vista is currently supported

Most of the tutorials using EFI boot installation Win7 are CD-ROM boot installation, although the CD-ROM installation is relatively simple, but for a friend without optical drive is still quite inconvenient, not to mention the two major shortcomings of CD-ROM installation, one slow, two inflexible. So this tutorial will explain how to install Win7 from a hard disk (USB drive) using EFI boot.

Prerequisites for this tutorial:

First, the motherboard BIOS supports EFI.

In general, the BIOS that supports EFI has an option similar to the EFI boot, which can be turned on.

Second, the original 64-bit Win7 image.

Most of the modified version of the Win7 image, there is no EFI boot function, need the original image.

Ps:windows 7 32 bits are not supported by EFI boot.

Chapter I preparatory work

First, make the installation partition

1, first in the mobile hard disk (USB drive) to prepare a FAT32 partition

Be sure to FAT32 the partition because the EFI BIOS only recognizes the FAT32 partition

Free space-recommended 5G, minimum requirements, can put down all the files extracted from the Win7 image

The primary partition is also OK, logical partitioning is OK, and no boot function is required. For the convenience of narration, this partition is called the Install partition.

2. Copy all files from the Win7 x64 image to the install partition root directory

3. Unzip the EFI SHELL (x64). zip to the Install partition root directory,

Ps:efi SHELL (x64). zip already contains the DiskPart tool

4. Copy the Bootmgfw.efi to the install partition root directory

Chapter II Installation of the Win7 64-bit system

First, boot from EFI to EFI shell

1. Press F2 to enter BIOS settings, in the last item exit there is an option launch EFI shell from filesystem device.

2. After starting the EFI shell,

After you start the EFI shell, you will be prompted

Fs0: ........ ...............

FS1: ........ ...............

FS number-refers to the FAT32 partition on the hard disk, similar to the c:,d: drive letter under Windows.

After shell> the cursor, enter FS0: Carriage return to enter the partition. Command LS to list the files in the current directory, if you can see the win7 installation files, if not, then switch to other partitions until you see the Win7 installation files.

3, type the command Bootmgfw.efi, you can start the Win7 Setup program

Second, installation system

Focus on the use of the DiskPart command to build GPT disks, and the method of creating partitions, for the sake of convenience, Win7 will be installed to the disk, called the target disk. This only describes how to use the DiskPart command to build GPT disks and partitions, and this method erases all data on the disk.

For lossless conversions, refer to other methods.

When you install a program to select a partition, you may encounter the following conditions:

When Windows Setup steps to select a partition,

One, the target disk is a blank disk case,

Select the target disk directly, and the installer will help you build the various partitions of EFI.

Second, the situation may appear as shown, because the target disk is an MBR disk

To establish a GPT partition using the DiskPart tool:

1. Convert MBR disk to GPT disk

In the Select Partition interface, press SHIFT+F10 to bring up the command prompt

Type

DiskPart

Open the DiskPart tool

★ Select Target Disk

List disk--------------------list system-owned disks

Select Disk 0--------------Choose number No. 0, depending on the size of the disk, determine your target disk

★ Empty the target disk and convert to GPT format

Clean-------------------------Erase the disk, which erases all data on the disk

Convert GPT------------------converting a disk to GPT format

List partition-----------------list the partitions on the disk because we just converted to GPT format, so the partition is empty

★ Set up EFI partition and system installation partition

create partition EFI size=100---------------build EFI partition, size 100M, if you intend to use this partition to boot Mac system, recommended size 200M or more

create partition MSR size=128--------------set up MSR partition, Microsoft default, size is 128M

Create partition primary size=50000-------Establish primary partition, size 50000M, please adjust according to your own needs, the partition is used to install Win7

List partition---------------------------------list the partitions on the disk

PS: In fact, a DiskPart tool, can almost replace the other third-party disk tools, such as the famous Diskgenius, is unable to change the GPT format disk partition ID, but DiskPart can.

PS: When installing the MAC system, you need to change the partition ID.

PS: For detailed use of DiskPart, you can type help in DiskPart to view

2. Complete the installation

In the Windows Installer's Select partition interface, click "Refresh" to list the previously established partition, select the appropriate partition, complete the installation.

The above is the use of EFI boot installation Win7 Graphics tutorial, this tutorial is more complex, so it is recommended that novice under the guidance of experienced friends to do this, or read this article, and EFI-led Win7 is not software activation, can only be brushed BIOS activation, For this reason, a friend using BIOS activation is recommended to install Win7 using the above method.

Using EFI to boot a Win7 from a hard disk (USB drive)