|If you can get online, download, install and update MalwareBytes freebie which is good at fixing these. If the exe for the download won't run then change it to bat.|
Similarly if the actual program won't run then change the program's exe to bat.
If you can't get the download get it on another machine and put it on a flash drive.
Once the thing has been dealt with, if you still can't run exe files, then chose EXE from here:
(but run MalwareBytes first)
We all live on the same ball.