Lenovo Yoda 8″ 851F bought from Amazon Japan. Cheaper by over 13000 Yen because the seller took out the Office 365 1 year for resell.

The original Windows 8.1 with Bing, I installed English language pack over the default Japanese language but some of the words are still in Japanese. After upgrade to Windows 10, deleted the default partitions and Windows 8.1 backup files, so no turning back.

Windows 10 was really not my cup of tea. So I reinstall a 32bit Windows 8.1 ISO file from Microsoft.com. However the serial key back up from the original Windows 8.1 is not working.

Further checking I found the only ‘official’ way to get the Win 8.1 with Bing is from the device’s manufacturer, in my case Lenovo Japan. I do not intent to do that, of course.

http://forums.mydigitallife.info/threads/56755-Windows-8-1-with-Bing-AKA-CoreConnected-CCSL-and-ProfessionalStudent-OEM-images has the Windows 8.1 Bing ISO, but it is only available for torrent download, which my ISP TM Malaysia Streamyx has blocked.

Next I found it on http://www.linxtablet.co.uk/page.php?p=downloads—windows-81-bing&sid=ad908ed3eafdbd149ed7c8018a56e3af

After download and make sure the SHA1 checksum is correct (matching checksum from mydigitallife.info), I use Windows 7 USB/DVD Download Tools to burn the ISO into a bootable USB drive.

Start my Yoga tablet2, press and hold volume up while press the power on button, go into BIOS, disable secure boot. After that select USB drive as boot device, run SETUP.exe and viola! Windows 8.1 bing setup continues without even asking for the serial key.

Continue the rest of the setup, hopefully no more problem.. now just worry on the drivers part 😉

Windows 8.1 RTM CoreConnected Retail OEM:DM ISO

3 thoughts on “Windows 8.1 RTM CoreConnected Retail OEM:DM ISO

  • March 18, 2017 at 4:13 pm

    Just spent around two weeks on a cheap 16GB tablet that came with Win8.1 with Bing. No ISO whatsoever. Many failed attempts (not to be discussed to avoid confusion), but finally managed to do a clean install.

    It has a recovery partition, which was indeed tricky. Using the built-in recovery actually made the tablet unusable! No luck with Win2USB either. Tried quite a lot of things with DISM, including directly apply the install.wim from the recovery partition to the windows partition, but no luck again.

    For quick information, install.wim is roughly a file with the structure of a windows boot drive, and the computer would boot and detect drivers after the content is correctly cloned to a boot disk. My tablet was however said to be incompatible during driver detection, so it didn’t work out. Previously got a Windows 10 licence with Windows to Go (but painfully slow), and a clean install of Windows 10 with the common installer could indeed be completed. But many devices, including touchscreen, wifi and sound, didn’t work.

    Learnt that I could pull drivers from the install.wim (i’ll call it tablet wim) in the recovery partition with DISM, then convert the install.esd in the windows installation media (usb made from ISO) to install.wim (Win10 wim), and use DISM /add-driver to push the drivers into the Win10 wim. Put the Win10 wim to where install.esd was located, and it installed with ease. This may end the story for some, but big problems for my particular tablet: a touch on the touchscreen points to a random location. And no sound.

    But then, if an edited Win10 wim could be used to replace the install.esd, and the install.wim is indeed a packed file in the boot drive structure, why not try to put the tablet wim into the usb installation media to try out? A big problem however: the tablet wim was larger than 4GB, so that it could not be placed in a fat32 partition of a GPT USB Disk for UEFI booting (Yes the tablet was a Bay Trail which only allowed UEFI booting, and 32-bit only).

    The solution: Mount the tablet wim with DISM, then export it to a compressed wim file with /compress:max. The resultant wim file was around 3.7GB large, just ok for a FAT32 partition. And certainly it had all the drivers required. With the new 3.7GB install.wim in the \source folder to replace the install.esd in a Windows 8 installation USB (single language version downloaded with media creator to be precise, but there’s no reason why other version won’t work), installation works like charm, and no CD-KEY was asked. After two reboots, and entering the account details, here comes the Windows 8 tiles. Windows already activated.

    In short, it is possible to do a clean install of Windows 8.1 with Bing in a tablet. Just that it may require some knowledge on DISM, quite a lot of time (working with WIM files is really time-consuming), and possibly additional space (forgot to compress the boot drive before installation… now the Windows installation occupied nearly 10GB even without considering the virtual memory [email protected]@… anyway I no longer care as it was still a brick two weeks ago.

    • May 17, 2017 at 3:29 am

      thank you for the in-depth technical yet helpful explanation!


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