Detailed WIMBoot new technology under Windows8.1 Update

With the update of windows8.1 update, more and more users are beginning to contact this new system, but in the face of some new features of this new system, many users are still unable to do anything, do not know These features are specifically used for what, what is the role, so here is a detailed introduction to the new WIMBoot technology under win8.1update.
1.WIMBoot Technology
WIMBoot, which is Windows image file boot, means that the system directly reads a WIM image to complete the entire boot process, and the WIM image is equivalent to the existing system disk, and its volume is greatly compressed. The maximum compression is 4G (this compression ratio is equivalent to a complete system image of Win8.1 with Update).
This technology can help OEM computer manufacturers deploy systems, upgrade systems or create restore partitions.

Second, WIMBoot limitations
The current new technology can not be applied to all Windows platforms, only for Windows 8.1, Windows 8.1 Update (partial support of Win7 platform), specifically covering x64, x86, ARM platform, However, WIMBoot does not support the same platform Windows Server 2012 R2.
If the computer is a traditional BIOS, then you will not be able to use WIMBoot technology. Therefore, WIMBoot is only suitable for PC devices based on UEFI motherboards.
In terms of memory devices, WIMBoot is perfectly compatible with existing SSD solid state drives and eMMC memory devices, but does not support traditional mechanical hard drives and hybrid hard drives. (Considering the technology of disk reading, fast boot, etc., slow traditional mechanical disks can not meet the higher speed requirements of WIMBoot)
Therefore, WIMBoot is only used for SSD solid state drives and needs to be stored to SSD or eMMC memory.
If you are a traditional PC user, you can also configure a second mechanical hard drive or a hybrid hard drive to expand more disk storage space.
Note: Some system backup tools, anti-virus software and disk encryption tools are not compatible with WIMBoot images.
Three, WIMBoot principle
After talking about the new features of WIMBoot, you have to mention the basic principles. How does WIMBoot achieve lower disk usage than traditional Windows installations? The TechNet community also unveiled the specific operating principles for everyone.
In the traditional Windows system installation process, all system files will be written to the local disk twice: the first to write the compressed archive system backup file to the disk; the second time to write the uncompressed archive system file. When the system installation task is completed, our local system disk will store a compressed version of the system backup file.