What is this ...
WIMBoot is a feature that we can boot from .wim file instead of extract content to harddrive.
WIMBoot made for computer or tablet that have small size of storage (eg. 32GB OR 16GB) for increase for free storage space. And make device have ability to recover, resetting, reinstall windows without windows installation disk.
After windows 8.1 Updated we can use WIMBoot feature and now I use this feature for windows 10 to boot our Iconia W510 tablet.
(More about WIMBoot : WIMBoot Overview)
(SEE MY PREVIOUS POST ABOUT WIMBoot FOR ICONIA W510 WITH Windows 8.1 Updated : HERE!!)
Screen Shot ...
This picture is system detail as you see windows is activated!

This picture show free space after clean install. Around 24GB free space.
In C: drive it have more partition space than windows 8.1 update

As you see Windows C: used around 2.79GB for pagefile and hibernate files.

With my installation. My windows have activated...
I do not know with your installation it will activate or not, I can't confirm this, you must try for your own risk.

What will you get with this.
- More freespace for your drive. (Around 24GB)
- Ability to use recovery function of windows (Recover, Resetting, Reinstall) without installation media.
Before you go :: Please READ!!
- This solution is for ICONIA W510. But you can apply to another windows tablet that use Atom z2670 (Or other I can't comfirm must try for your own risk).
- I add W510 Drivers to this image you can use your docking. If you don't have docking you can use USB Hub for more usb port to use with USB Flashdrive, USB Keyboard, USB Mouse.
- About windows Activated... I'm not guarantee it will activated or not. MUST TRY ON YOUR OWN RISK. It seem product key in UEFI/BIOS not work.
- This solution will wipe all your storage partition. Please backup your data to your safe place.
- This solution cannot downgrade to your old windows.
- This windows 10 is from media creator tool.
- It is windows 10 Core Single Language with english version only.(I will add solution to add language to installation later [if i have more time].)
- If this solution helpful you can buy me some beer!!!

Download Tools AND Files.
WindowsPE & WIMBoot Image for ICONIA W510.
Need 5 files (file .md5 use for check file hash)
- winpe.iso
- source.7z.001
- source.7z.002
- source.7z.003
- source.7z.004
Download HERE.
Rufus for create USB Bootable : https://rufus.akeo.ie/
7zip for extract file : http://www.7-zip.org/download.html
RapicCRC for check file hash (IF NEED) : http://rapidcrc.sourceforge.net/
YOU NEED USB Flash Drive 4GB or larger.
Solution....
1. preparing Bootable Media.
Create bootable flash drive using Rufus. See PICTURE.

Prepare WIMBoot file
- Extract file "source.7z.00x" using 7zip if it ask for password enter "aphorist".
- You will see 3 file.
- partition.txt
- install.cmd
- install_wimboot.wim
- Copy ALL files to Bootable Flash Drive in folder "SOURCE".
2. Preparing Tablet for boot from USB.
- Shutdown your tablet.
- When your tablet shutdown completely.
---> Hold down volume down button.
---> Then hold down power button.
---> When acer screen appear release all botton. - UEFI appear.

- Go to Security and set supervisor password.
(If not you will not able to disable safeboot and can't boot to usb thumdrive.)
(PLEASE REMEMBER YOUR PASSWORD CAFULLY!!!!)

- Go to Boot and set Secureboot to Disable. Then move USB HDD: to upper.

- Go to Exit and select Exit saving changes. Your tablet will restart and boot as normally. Please shutdown again.
3. Boot to Windows PE from USB Flash Drive and install Windows 10.
- Connect your bootable flash drive (From step 1).
- For sure you must remove micro-sd card now.
- Then power on your tablet. AND Wait.......
- In boot process you don't need to do anything it will boot to flashdrive when it completed you will see command prompt. (Some time it boot so long depend on speed of your USB Flash drive.)
- Windows PE will look like this.

Thank picture from svrops.com - In the command box. Type.
> d:
> cd source
> install - The script will wipe your drive and recreate it in WIMBoot partition layout then apply image for you.
Now... need to relax go to rest or just watching the screen. 
- When completed your tablet will reboot automatically.
- If windows ask for product key just click skip.
- Completed....
FYIK.
- This solution not confirm that you will get windows be activated or not.
- This windows 10 is "Single Language" edition and in English (United state) language.
If I have more time I will add solution to add another language later. - AGAIN if you like this please buy me some beer....
