Thank you all very much for your quick responses. KonC, when I went to the file to try your suggestion I noticed the b.exe file was only 1KB in size. The actual file is 79KB. So I copy/pasted the correct file to my 'D' partition (after changing the name to GWBASIC.EXE), and it worked! What I can't …

I installed DOSBox a couple of days ago and after becoming familiar with how it works I had it working beautifully, loading up GW BASIC and from there the program I wished to use. Then Windows 10 installed an update and following that, the next time I tried to boot up I got a "Cortana cannot open" …