Hello, This Error might be the cause of you running a 32-bit version may I suggest finding a 64-bit, because I have just found out that if your running Windows 64-bit sometimes refuses to run an application that is 32-bit, I Had this issue before.
I realised that a 32-bit software that I ran gave me the error you are currently facing, but when I downloaded a 64-bit version it actually worked! Realizing i had a Windows 10 Pro | 64-bit
And for your Opera / Opera GX Issue I have also solved!
[Mod note: Only links from official Opera pages are allowed to download Opera. Down;load Opera from https://www.opera.com/download]