Weirdness with open canopy/ oc picker

So, I used to have a window installation on a second drive on my hack but recently I decided to just get rid of it and so I formatted the disk. Then after a couple of weeks, I noticed that the windows option was still there . in the Bootpicker. I want to know why this is the case and is there way to remove it from the menu?

Thanks.

submitted by /u/JfromImaginstuff
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