my wifi doesn't work HELP

[Kenny mikeson]

So what happens was that i trying to get a game. When it showed exe i thought not to do it but i accidently pressted it by mistake so it started effecting my computer. so when i got of the malware i found it that my computer was saying no internet, open and normal it goes back to normal but this time it didn't .So can anyone help it will be so helpful thanks.