The Best Windows Video Players of 2023

 Sure, here are some Windows video players that can fill in blank areas:

• VLC Media Player: VLC is a free and open-source video player that supports a wide range of file formats. It also has a zoom feature that allows you to fill in the blank areas of a video.
• MPC-HC: MPC-HC is another free and open-source video player that is known for its high performance. It also has a zoom feature that allows you to fill in the blank areas of a video.
• KMPlayer: KMPlayer is a free and ad-supported video player that is popular in Asia. It also has a zoom feature that allows you to fill in the blank areas of a video.
• PotPlayer: PotPlayer is a free and open-source video player that is developed by South Korean company Daum. It also has a zoom feature that allows you to fill in the blank areas of a video.

To use these video players to fill in blank areas, follow these steps:

1. Open the video player and load the video that you want to watch.
2. Click on the Zoom button or menu option.
3. Select the Fill option.
4. The video player will now fill in the blank areas of the video with a blurred version of the picture.

Note that the quality of the filled-in areas may vary depending on the video player and the video quality.

Here are some other features that you may want to consider when choosing a Windows video player:

• File format support: Make sure that the video player supports the file format of the videos that you want to watch.
• Playback speed control: This allows you to slow down or speed up the playback of a video.
• Subtitles: This allows you to watch videos with subtitles.
• Audio output: This allows you to output the audio of a video to different devices, such as speakers or headphones.
• Hardware acceleration: This uses the graphics card to improve the performance of the video player.

I hope this helps!