Shoutbox

I'm trying to use this code to check for the presence of Windows Defender:

code:

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if (File.Exists("%ProgramFiles%\\Windows Defender\\MSASCui.exe") == true)

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However it doesn't work, lol.  It returns that windows defender isn't installed, even though it 100% is.

This is definitely the problem as if i change it back to look for C:\Program Files\Windows Defender\MSASCui.exe then it finds it.

Any ideas what I'm doing wrong?