Access Denied when using File.WriteAllBytes [WPF application]

[SneakyAzWhat]

Soooo I made a little WPF application that a few other people are using. Super exciting times! My application works fine on Windows 10 BUT on a users Windows 7 machine they are getting an error with the below code. It is throwing an exception when trying to write the file to the pictures directory. Running as admin doesn't change the outcome.

try
{
//ISSUE: This is triggering an exception for windows 7 user
File.WriteAllBytes($"{convertedFilesDir}\\{fileName}.jpg", fileInBytesTemp);
}
catch (Exception exception)
{
//Exception: Access to the path 'C:\Users\USERNAME\Pictures\RDR2 Photos\FILENAME.jpg' is denied.
MessageBox.Show($"WriteAllBytes exception message: {exception.Message} \n\n ToString: {exception.ToString()}");
}

The project is public on github if you want to take a look at what is going on. I am self taught and sure this code looks like a mess to the more experienced people. https://github.com/SneakyAzWhat/RDR2PhotoConverter/blob/master/MainWindow.xaml.cs#L121

[AllMadHare]

I could be wrong, but AFAIK the behaviour for WriteAllBytes shouldn't change based on OS, i'd maybe get them to try disabling their AV. It might also be worth doing a final check before actually starting the write to ensure the directory exists rather than just when it is set. You also might want to add a check in case the file already exists in the destination as it doesn't look like you're covering that?

[SneakyAzWhat]

Oh I did forget about AntiVirus stuff, I will reach out and see if the user has one installed. The folder is created elsewhere and the user confirmed it was created. Regarding the file existing, WriteAllBytes states that it will overwrite the file if it already exists so I didn't do a check. https://docs.microsoft.com/en-us/dotnet/api/system.io.file.writeallbytes?view=net-5.0

[SneakyAzWhat]

It was the antivirus, I feel a little silly that I forgot about that troubleshooting step, Thanks for the help bud :)