*** Important Note ***
You MUST disable your anti-virus and firewall in order to download the software, driver and updates. Any active anti-virus will try to delete the files as it does not recognize the file as safe. They are safe but because of language issue it is often seen as a virus and it will delete your files. YOU MUST DISABLE YOUR ANTI-VIRUS AND FIREWALL or you will not be able to download the software properly.
*** Important Note ***
To prevent antivirus from re-enabling on startup and deleting important files, it is recommended to permanently disable the antivirus on that PC.
You can use DControl (search for it on Google) to completely and permanently disable Windows Defender.

Related Tech Support:
ECUHELP KT200 ECU Programmer Installation Guide