Could this perhaps be your problem:http://www.howtogeek.com/230063/how-to-circumvent-this-app-has-been-blocked-for-your-protection-to-install-apps-in-windows-10/
I've heard that windows 10 will sometimes refuse to run certain downloaded exe files if they are unsigned. If AND ONLY IF you can be ABSOLUTELY sure that the exe file you wish to run is safe and trustworthy then the article above explains how to do it.
Look at that howtogeek page, does the error it describes match the problem you're having? If not your issue will be something else.
I would guess that by "I cannot run EXE files" waltgokey means he can't open exe files he has downloaded, because if exe files couldn't run at all then he wouldn't be able to do anything, no browser (because every browser needs an exe file of some sort, no file explorer because that is explorer.exe, no command prompt as that is cmd.exe, no task manager, no control panel or any of the functions it lets one access...
A virus scan is highly advisable though, and if you're planning to run an exe file you've downloaded best to virus scan that file with your antivirus, and with a second opinion scanner, and with virustotal.
Edited by rp88, 07 July 2016 - 01:37 PM.
Back on this site, for a while anyway, been so busy the last year.
My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB