Unable to upgrade to Windows 10 error: "THIS TOOL CANT UPGRADE YOUR PC"

Pre-requisite Task

When making significant changes to your computer such as updating the operating system, you should always backup. See links to resources about backing up by clicking the link for the respective version of Windows you are running: Windows XP, Windows Vista, Windows 7, Windows 8/8.1

• How to manually backup and restore your files
• How to free up disk space in Windows
• How to: 10 Tips before installing Windows 10
• How to: Determine if an application or hardware device is compatible with Windows 10
• Will documents and apps remain, or are app installs required

1. Browse to "C:\Windows\SoftwareDistribution\Download" and delete the contents of the folder.
2. Press Windows key + X > Click Command Prompt (Admin) then type "wuauclt.exe /updatenow".

Hit Enter

3. Open Control Panel > Windows Update and Windows 10 should begin downloading..

Press Windows key + X

Click Command Prompt (Admin)

Type in at the prompt OR Copy and Paste these one at a time : (Hit enter after each)

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /ScanHealth

Dism /Online /Cleanup-Image /RestoreHealth

• Disable (preferrably uninstall) your Antivirus utility before attempting the upgrade.
• Restart a few times and try again.
• Disable General USB Devices (example - Smart Card Reader). 
• If you are using a SCSI hard disk, make sure you have drivers available for your storage device on a thumdrive and it is connected. During Windows 10 setup, click the Custom Advanced Option and use the Load Driver command to load the appropriate driver for the SCSI drive. If this does not work and setup still fails, consider switching to a IDE based hard disk.
• Do a clean boot and try again.
• If you are upgrading using the .ISO file, disconnect from the Internet during setup, if you are connected by LAN (Ethernet) or Wi-Fi, disable both and attempt setup again. 
• If you are updating through Windows Update, when the download reaches 100% disconnect from the Internet LAN (Ethernet) or Wi-Fi and proceed with the installation.
• If that does not work, try using the .ISO file to upgrade if possible.
• If you are connected to a domain, switch to a local account
• If you have any external devices attached to the machine, disconnect them (example, gaming controllers, USB keys, external hard disk, printers, non-essential devices).

  How to: upgrade from previous versions of Windows using Windows 10 ISO file

  How to download official Windows 10 ISO files

  If you are installing Windows 10 using Windows Update, try the following:

  1. Press Windows Key + X on the keyboard and then select “Command Prompt (Admin)” from the menu.

  2. Stop the BITS, Cryptographic, MSI Installer and the Windows Update Services. To do this, type the following commands at a command prompt. Press the “ENTER” key after you type each command.

                             net stop wuauserv

                             net stop cryptSvc

                             net stop bits

                             net stop msiserver

  3. Now rename the SoftwareDistribution and Catroot2 folder. You can do this by typing the following commands in the Command Prompt. Press the “ENTER” key after you type each command.

                            ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

                            ren C:\Windows\System32\catroot2 Catroot2.old

  4. Now, let’s restart the BITS, Cryptographic, MSI Installer and the Windows Update Services. Typethe following commands in the Command Prompt for this. Press the ENTER key after you type each command.

                          net start wuauserv

                          net start cryptSvc

                          net start bits

                          net start msiserver

  5. Type Exit in the Command Prompt to close it and then restart the computer.

David

What language or edition of your version of windows is currently installed on your pc?

•If you have Windows 7 Home Premium, Windows 7 Professional, Windows 7 Ultimate, Windows 8 Pro with Media Center, or Windows 8.1 Pro with Media Center and you install Windows 10, Windows Media Center will be removed.
http://www.tenforums.com/tutorials/2267-windows-10-upgrade-installation.html

It does say you can upgrade.

Microsoft is supposed to allow you to download a free DVD player software soon, to replace that capability in Media Center.

Microsoft rolls out Windows DVD Player for Windows 10 users

More details here:
https://www.microsoft.com/en-gb/windows/windows-10-specifications

What language is your Windows 8.1 Pro with Media Center?