Note: You can also change the retention period to delete older recordings.
To delete a "Screen Capture" recording:
Click on the specific portion of the timeline you want to delete in order to select it
Hit the delete key on your keyboard (or backspace)
Confirm you want to delete the selected recording
Restart Rewind in order to see the updated changes
To delete an audio recording ("Audio Capture"):
Click on the three dots in the upper right hand corner of the transcript window
Click on "Delete transcript", which deletes the audio recording and transcript from your disk
Confirm you want to delete the selected recording
Restart Rewind in order to see the updated changes