Ensure the file actually ends in .mp4 . If it was accidentally renamed to something else, right-click and rename it back.
If the video was interrupted while recording, you can try a tool like the Restore.Media service or FixVideo to repair the header. VID-222vvuh(1).mp4
Default filenames like VID-222vvuh(1).mp4 are common in phishing or malware. Only open this file if: recorded it yourself. Ensure the file actually ends in
If you hear sound but see no picture, your computer might be missing a codec. Installing the K-Lite Codec Pack usually solves this for Windows users. 3. How to Share or Upload Default filenames like VID-222vvuh(1)
If your default player isn't working, try these universal options:
It was sent by a you were expecting a video from. You have scanned it with VirusTotal if you found it online. Upload YouTube videos - Android - Google Help