Uploading video from Your Computer to Youtube

1. Before you upload the video to YouTube, make sure that it is converted into a proper format. YouTube accepts the following formats:

• .AVI (Audio Video Interleaved)
• .3GPP (3rd Generation Partnership Project)
• .MOV (QuickTime Movie)
• .MP4 (Motion Picture Experts Group Part 14)
• .MPEG or .MPG (Motion Picture Experts Group)
• .FLV (Adobe Flash)
• .M4V (h.264)
• .WMV (Windows Media Video)
• .WEBM (HTML5)

2. Log in to your account (Google Account) Each account has its own channel attached to it. Sign in to the account that is associated with the channel that you want to upload the video to.

3. Enter website www.youtube.com,  Click the Upload button on the top right . 

4.  Click the “Select files to upload” button to open a file browser. Find the file or files that you want to add. You can also drag and drop videos into the square in the web browser window.

5. Enter the details. Required information includes the title of the video, the description of the video, and any tags that you want to add.

• Adding a description to your video will allow for others to learn more information about it, which will display at the bottom of the video. To help your video stand out, add a unique description and don’t just copy the title into the description box.
• Tags allow other YouTube users to see your video by linking common words associated with your video (e.g. Dancing Elephants has a tag of "elephants," "dancing," and "funny"). Other videos with similar tags will often be seen together in the "Recommended videos" sidebar.
• Annotations allow you to add notes or pauses to the video that you may have forgotten to put in. These can allow the viewer to see additional information about your channel, for example, without having to read the description.

6. Click on Publishing button to publish the video.

Hope the post help you guys.