I recently downloaded a massive 45 GB .mkv file and tried to open it in VLC, but something strange happened. Instead of opening, a window popped up for just a split second and then closed immediately. I right-clicked to check the file properties, and it confirmed it was an .mkv file. However, the window froze afterward, and I'm feeling a bit anxious about what this means. This all occurred about 30 seconds ago, and I'm using Windows 11. What steps should I take now?
4 Answers
Booting into safe mode can help if you're experiencing ongoing issues. It’s also worth mentioning that mkv files are just containers—sometimes they can have issues if the encoding isn't spot on. If the file opens in the future, just be cautious about what you’re running.
Definitely make sure your VLC player is the latest version; that can fix a lot of problems. If you have enough RAM and swap space, it shouldn't have crashed. If the file is just too large, that could also be a reason for the glitch.
Maybe the file is corrupted? I’d be curious to know what that window looked like when it popped up. Also, did you scan the file with any other programs before trying to open it?
First off, it’s a good idea to run a malware scanner, like Malwarebytes. With a file that big, VLC might've crashed due to its size, but it's best to make sure your system is safe. Also, quarantining that file for now might be wise until you know it's safe to open. Glad to hear you scanned with Windows Defender too; just keep an eye on things for a bit!
Yeah, VLC can crash if the file is too large or if there’s any corruption. It sounds like your system is clear, but better safe than sorry!

Agreed! MKV can cause problems, especially if something's off with the video or audio inside. Plus, making sure VLC is updated will help avoid vulnerabilities.