The Teclast X98 Pro (a good review here) is the third iteration of the popular Teclast X98 series of tablets. This latest 2015 version features an updated chipset with Intel’s latest Atom SoC the 14nm Cherry Trail and double the Ram of it’s predecessors. The X98 Pro currently comes with Windows 10 and no dual boot or 3G/4G options yet. Because the dual boot device reduce to less than 32Gb the space available for Windows 10, I’ve decided to remove the Android partition.

After various searches over internet and tests I’ve used the following procedure that have worked for my tablet.

What you need

• Teclast x98 PRO – K9C6
• HUB USB OTG with power charging host
• USB Keyboard
• USB mouse
• 8Gb USB flash drive

Backup Windows 10 product key

You can download the full guide and powershell script on how backup window product key via PowerShell here. Windows 10 should be able to automatically download the product key and re-activate itself on the same hardware, but just in case the procedure doesn’t work, here you have a backup of your product key.

• Open Powershell and “run as Administrator”
• Type “Set-ExecutionPolicy RemoteSigned”
• Type “.\GetProductKey.ps1”
• Save the product key somewhere

function Get-WindowsKey {
    ## function to retrieve the Windows Product Key from any PC
    ## by Jakob Bindslet (jakob@bindslet.dk)
    param ($targets = ".")
    $hklm = 2147483650
    $regPath = "Software\Microsoft\Windows NT\CurrentVersion"
    $regValue = "DigitalProductId"
    Foreach ($target in $targets) {
        $productKey = $null
        $win32os = $null
        $wmi = [WMIClass]"\\$target\root\default:stdRegProv"
        $data = $wmi.GetBinaryValue($hklm,$regPath,$regValue)
        $binArray = ($data.uValue)[52..66]
        $charsArray = "B","C","D","F","G","H","J","K","M","P","Q","R","T","V","W","X","Y","2","3","4","6","7","8","9"
        ## decrypt base24 encoded binary data
        For ($i = 24; $i -ge 0; $i--) {
            $k = 0
            For ($j = 14; $j -ge 0; $j--) {
                $k = $k * 256 -bxor $binArray[$j]
                $binArray[$j] = [math]::truncate($k / 24)
                $k = $k % 24
            }
            $productKey = $charsArray[$k] + $productKey
            If (($i % 5 -eq 0) -and ($i -ne 0)) {
                $productKey = "-" + $productKey
            }
        }
        $win32os = Get-WmiObject Win32_OperatingSystem -computer $target
        $obj = New-Object Object
        $obj | Add-Member Noteproperty Computer -value $target
        $obj | Add-Member Noteproperty Caption -value $win32os.Caption
        $obj | Add-Member Noteproperty CSDVersion -value $win32os.CSDVersion
        $obj | Add-Member Noteproperty OSArch -value $win32os.OSArchitecture
        $obj | Add-Member Noteproperty BuildNumber -value $win32os.BuildNumber
        $obj | Add-Member Noteproperty RegisteredTo -value $win32os.RegisteredUser
        $obj | Add-Member Noteproperty ProductID -value $win32os.SerialNumber
        $obj | Add-Member Noteproperty ProductKey -value $productkey
        $obj
    }
}

Get-WindowsKey

Prepare the USB drive

• Download latest Windows 10 ISO– look for “Windows 10 (Multiple Editions) (x64) - DVD (English)”
• Download Latest Techlast W10 drivers (22 October 2015)

• Prepare the USB flash drive. Insert your usb drive in your USB port, open command prompt and type:

diskpart
  list disk
  select disk <disk number>
  clean
  create partition primary
  format quick fs=fat32 label="WINPE"
  exit

• VERY IMPORTANT do not change the label name
• Copy windows 10 setup files from the .iso to the usb flash drive
• Extract files downloaded from Teclast (see above) in a folder on the USB flash drive

Setup Windows

Plug keyboard, mouse and USB flash drive in the USB HUB

Turn on the tablet while repeatedly press F7 key

Select USB key as boot device

Select Language/Keyboard

Click “Install Now”

Select “Custom Install”

You should see many partitions…

Remove them all

Create new partition

Start installation

Setup Teclast Drivers

Once finished the installation, the tablet is still a “poor pc with a super high resolution display”:-) this means, no wifi, no bluetooth, no motions sensor, no TOUCH and so on.

Thanks to Keyboard and Mouse, you can right click on start button, and open Device Manager.

You will find tons of “unknown devices”. No problem, for each of those, Right click and select “update driver software…”:

Select “Browse my computer for driver software”

Select the forder, on the USB flash drive where you have pied Teclast’s software

Fix Touch

At the end of drivers installation, the touch still will not work.

You must copy the file touchsetting.gt (from root of the Teclast driver’s folder) to c:\windows\inf

Restart the laptop and the all should work.