Greetings and thanks for your replies. It's really good to know that help is at hand in here.
For some crazy reason I cannot fully understand Malwarebytes opened to day when I turned on my pc... It seems to be fully functional now.
I am sure that it has been down for many days perhaps weeks because I tried to scan an item without luck some weeks ago, but had no time to look into it.
Perhaps interesting for you guys to know: Yesterday I did try to reinstall Malwarebytes by downloading the latest version, but the installation was stuck halfways for about 15 min. and I had to turn of the pc to kill the installer.
Also - if you still want to hear more of this story - Windows 10 started to install a major update on a restart I did, also yesterday, and that update was soo slow - after more than half an hour we had reached 27% - I also killed that update, by turning of the power of the PC. I don't know if those two things had anything to do with each other. I know that Windows 10 wants to install a major update, but I have never experience an update with a tempo of 25% per half hour.
Thanks again for your help. I would be happy to hea,r if you have any thoughts on what I just described.