If your live stream is less than 12 hours long, YouTube can automatically archive it for you. This option applies to all types of live streams, including: encoder, webcam and mobile. YouTube will also automatically archive streams of 1440p and 2160p (4K) video resolution. We recommend recording a local archive as a backup. You can create highlight clips while your stream is still live.
Note: If your stream exceeds 12 hours, it may not be captured at all.
Archive settings
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Go to YouTube Studio.
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From the left-hand menu, select Content
.
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Click the Live tab.
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Select detail
on the video that you would like to change.
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To change your privacy setting: Select Visibility. Once you've made your selection, click Done.
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To delete the video: In the upper right-hand corner, click More
Delete
. In the pop-up that appears, confirm that you would like to delete the video. Then, click Delete forever.
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Click Save.
.
on the video that you would like to change.
Delete 
. In the pop-up that appears, confirm that you would like to delete the video. Then, click Delete forever.Note: On mobile live, you can edit privacy settings – including setting it to private – or delete the archive on the 'My videos' page.
After your mobile live stream ends, you can edit privacy settings – including setting it to private – or delete the archive on the 'My videos' page.
Note: You can also change the privacy of any live stream archive using the Content page.