UEFI mode conversion method after win8 system is installed

UEFI mode conversion method after win8 system is installed

Each Win8 system has a startup mode, either BIOS mode or Win8 UEFI. After Win8 is installed, it is determined. However, as long as you have mastered the method, the Win8 system started by BIOS can also be changed to the UEFI system. Let's take a look at the method of adjusting Win8 to UEFI mode after installation:

1. First, install the Ghost Win8 system. Here we have installed it;

2. Then we need to set the Boot Mode to UEFI In the BIOS of the motherboard. Here we will not detail how to set the Boot Mode for each motherboard. However, the key UEFI is almost enabled. At this time, the hard disk can no longer boot, and then use a PE that supports UEFI boot to enter the PE system (the latest computer store, cabbage, and old peach are supported );

3. Enter PE and format the pilot partition (which is a small partition of MB or MB. If not, do not format it. Try to separate a MB FAT32 partition on the hard disk). Be sure to select the FAT32 file system;

4. Change the volume label to facilitate identification (skip );

5. After formatting, open the command prompt and type the command: bcdboot D: \ Windows/s C:/l zh-CN/f ALL.
In this way, the EFI boot partition can be repaired. In fact, this also fixes the BIOS boot. If you switch back to the BIOS boot, the boot will still be successful. In this step, the boot will be copied to the M hidden boot partition.

Note: In the code above, D is the partition where the system file is located (that is, the partition where the Windows, Program Files and other folders are located), C is the FAT32 partition, and you need to enter the corresponding drive letter according to your actual situation, otherwise, an error occurs.

The boot partition has been successfully repaired.

You can see that the boot file has been fixed.

Check BCD.

Restart the instance.

The above is an introduction to how to adjust Win8 to UEFI mode after installation. After setting it, check the Win8 startup mode. You will find that it has become UEFI.
Edit comment: Why do I need to change to UEFI mode?

What are the six advantages of UEFI:

1. UEFI provides larger disk capacity

Traditional MBR partitions support up to 2 TB hard disks and 4 primary partitions. In the GPT format, one UEFI specification supports hard disks of over 100 TB and primary partitions, it is particularly useful for users who use Windows 7. On the other hand, with the efforts of manufacturers such as Asus, tech and Seagate, 32-bit systems and traditional MBR partitions can also use hard disks larger than 2 TB through Virtual Disks, however, the native support of UEFI + GPT is certainly less effort-saving.

2. UEFI provides higher performance

Traditional BIOS is designed for traditional 16-bit processors with low addressing capability and poor performance. UEFI can be applied to any 64-bit processor with much higher addressing capability, outstanding Performance-simply put, more hardware is loaded and Windows is started faster.

3. 64-bit new systems have advantages

From Windows Vista SP1 and Windows Server 2003, as long as the 64-bit system can provide UEFI boot support, and the XP system and 32-bit new system can only be started through UEFI compatible modules.

4. More convenient batch Installation

The UEFI-equipped motherboard can be installed on a "broadcast" network. An image is broadcast to multiple machines to install the operating system. This is especially convenient for enterprise users.

5. Faster boot and sleep recovery

The traditional BIOS uses Int 13 to interrupt disk reading. It can only read 64 kB at a time, which is very inefficient. UEFI can read 1 MB at a time and load faster. In addition, Microsoft's next-generation operating system Win8 further optimizes UEFI support and is said to be able to enable instant boot.

6. Safer start

It has been rumored that Win8 uses UEFI to limit the survival of Linux and other systems. In essence, this design aims to prevent unauthorized code execution and ensure better security, you can disable this function.