I have a costumer with 25 anti-virus Kasperky . After update 1803, in Windows 10, some Kasperky stopped working. I reinstalled the anti-virus keeping the licensing and all the computers were o.k, except in one, curiously the one I have removed the license. Every time I try to install the anti-virus, it warns me to reboot the computer, after the reboot I start the installation, and while installing, it gives and "unknow error" . I use the executable that installs the latest version available. What can I do ?