If you use VLC with Windows (new installations use the Windows Media Player by default), you may get a very slow startup when playing music.
This is caused by a bug in Windows Defender. This can be worked around by adding an exception to Windows Defender for the VLC folder.
In Windows, open Settings, selected Update & Security, then Windows Security.
Select Virus and Threat Protection.
In this window, there is a heading, Virus and Threat Protection Settings. Select the link below that, Manage Settings.
Scroll down until you see a heading, Exclusions. Select the link below that, Add or Remove Exclusions .
Windows security will pop up a do-you-want-to-make-changes window. Select Yes.
You should see the exclusion list and the Add an exclusion button as below.
Select Add an exclusion .
Select Folder.
The standard Windows file selection dialog will be displayed. Navigate to Local Disk (C:) (displayed in the list on the left). Double-click on Program Files (in the list on the right), Scroll down until you see VideoLAN and double-click it. Select VLC, then select Select Folder.
This will add the entire VLC folder as an exclusion to Windows Defender, and the slow startup problems will be resolved.