I have installed windows 10 successfully. I later downloaded a sample javascript app (Simple imaging sample) which is zipped from the Microsoft dev centre. The computer is unable to open unzip the file. When I click on down loads with file explorer the system freezes while a small circle goes around. No other downloads seem to occur. I frequently get a warning that windows defender is out of date but when I try to download updates the system fails

How do I remove the downloaded sample - I am assuming that is the problem?