I have a base directory that contains several thousand folders. Inside of these folders there can be between 1 and 20 subfolders that contains between 1 and 10 files. I'd like to delete all files that are over 60 days old. I was using the code below to get the list of files that I would have to delete:

DirectoryInfo dirInfo = new DirectoryInfo(myBaseDirectory);
FileInfo[] oldFiles = 
  dirInfo.GetFiles("*.*", SearchOption.AllDirectories)
    .Where(t=>t.CreationTime < DateTime.Now.AddDays(-60)).ToArray();

But I let this run for about 30 minutes and it still hasn't finished. I'm curious if anyone can see anyway that I could potentially improve the performance of the above line or if there is a different way I should be approaching this entirely for better performance? Suggestions?

c# .net performance
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