Windows 10 and youtube-dl = huge delay caused by Windows Defender

[esamo]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2016.05.21.2. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2016.05.21.2

Before submitting an issue make sure you have:

• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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$ "E:/Dropbox/Script/youtube-dl.exe" --verbose --ignore-errors -f 18 --output "E:/Pobrane/_yt/%(title)s.%(ext)s" j5EK3ZGrqeE XtyeHZQ3tl4 IW0dqiPxjvE
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'--verbose', u'--ignore-errors', u'-f', u'18', u'--output', u'E:/Pobrane/_yt/%(title)s.%(ext)s', u'j5EK3ZGrqeE', u'XtyeHZQ3tl4', u'IW0dqiPxjvE']
[debug] Encodings: locale cp1250, fs mbcs, out cp852, pref cp1250
[debug] youtube-dl version 2016.05.21.2
[debug] Python version 2.7.10 - Windows-8-6.2.9200
[debug] exe versions: none
[debug] Proxy map: {}
...
<end of log>

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Description of your issue, suggested solution and other information

After upgrading to Windows 10, youtube-dl gets 5min (or more) delay before doing anything. I noticed that for this time in the task manager entry Antimalware Service Executable > Windows Defender Service is taking one whole CPU thread (thread is 3.2 GHz). The OS I had before was Windows 8.1. I don't expect that devs will alter Windows behavior, but maybe figure out what in the youtube-dl is causing defender scan to take so much time.

Regards & respect

[dstftw]

Add an exclusion for youtube-dl.exe.

[Hrxn]

Can't reproduce on Windows 10.

Did you try running it not from within the Dropbox folder? Or exit Dropbox to test?