UEFI+GPT Installing the WIN7 dual system under WIN7,WIN8/WIN10 installation

First, BIOS changes

First of all, BIOS changes: We know that uefi+gpt boot although the time is longer, but Win7 can not be fully supported, so in the use of Uefi+gpt install Win7 when there will be a variety of errors! Therefore, when installing Windows 7, we cannot set the BIOS to "pure UEFI" and must disable "Secure Boot". Here we talk about the settings, mainly have the following settings:

Settings: EFI bios:bootmode [Uefi/legacy], set to UEFI;

Launch CSM [enabled/disabled], set to Disabled ( I set the installation to Enabled, installation does not appear abnormal, see below the explanation of CSM );

LAUNCHCSM [Uefi/legacy], set to UEFI;

Set compatibility mode: CSM support[yes/no], set to Yes;

Osoptimized defaults[enabled/disabled], set to Disabled;

Osoptimized Defaults[win8 64bit/others], set to Others;

Disable secure boot: Secure boot[enabled/disabled], set to Disabled; ( This step is especially important!) )

CSM Full name compatibility support module, a compatibility support block, is a special module of UEFI that provides compatibility for systems that do not support UEFI. Currently, the WINDOWS8 fully supports the 64-bit uefi that is not fully supported by Uefi,windows7. Therefore, the installation of Windows7 in UEFI BIOS must turn on the CSM, most computers can be turned on automatically or manually, and a few computers will force the CSM off.

Second, start the PE installation WIM format file

If you have only one WIM file, you can install the system according to the following method.

Wim files are Windows file-based image formats, and WIM files store one or more copies of the Windows system, similar to Gho backup files, Microsoft ISO image of the main file is Install.wim, if only install.wim can also install the system, then the WIM format of the file how to install it? The following system city small compiled to teach you specific installation methods.

Installation details Step:PE installation win7 original image tutorial

1), Installation Preparation
1. system files in install.wim format
2, including Winntsetup PE system, the production of U disk PE boot disk steps
3. Where is the Windows mirror Install.wim?
4. Activation tool: Pony win7 activation tool

2), Install.wim installation system steps
1, insert the U disk PE boot disk, press start shortcut key F12 select U disk to enter, U disk start shortcut key Daquan;

2, enter the U disk installation interface, select 1 or 2 into the PE system;

3, in the U Professor PE system, running "Windows Installer", that is winntsetup;
4, select the location of the Install.wim file, select the location of the boot disk and the location of the installation disk, such as the choice of C ( I actually choose to choose the ESP partition as the boot partition, and the inconsistency ), it is necessary to note that the PE lower disk character display problems, The system disk does not necessarily display the C drive, then click to start the installation;

5, if unable to install, click on the "Select" button to the left of the "F" button to format the C drive.

is the Install.wim file installation system steps.

Three, do two system considerations

1. Some computers have multiple boot partitions (fat32/fat16) on the disk, such as:

In this way, the boot disk selected in step two must be set up in the same partition as the boot partition of the WIN10 system (the ESP partition of my Computer as the WIN10 boot disk, so step two select the ESP partition);

And the Bois boot entry must be set to the first boot entry (the ASUS Computer Board has the same name as multiple boot partitions and needs to be in sequence to the boot partition), or the system will not be able to enter the newly installed system after rebooting

UEFI+GPT Installing the WIN7 dual system under WIN7,WIN8/WIN10 installation