It turns out that you can use the context menu to set a different app to open a certain type of files, even though you don’t see it first. From this point on, simply double-clicking the MKV files on your computer will open the media file right in VLC media player.

MKV file type on the left, clicks whatever the app that is current set up, then choose VLC media player from the list. Then scroll down the page until you find the. Click Choose default apps by file types at the bottom of the window to go to next page. Opening MKV file still remains same with Movies & TV. You can change it from default universal Movies & TV app to VLC player but that only change the default behaviour for standard video types such as MP4, MPEG, AVI, or WMV files. Go to Settings → Systems → Default apps, and you will see one category on the right called Video player. The right place to go is the Settings app, obviously. So how can I set default apps in Windows 10, such as setting VLC as the default video player for MKV files? Before in both Windows 7 and Windows 8.1, you can quickly set the default app for the certain type of files right from the right-click context menu but not anymore in Windows 10. Setting default app in Windows 10 has dramatically changed.

How to change default video player