Tatyana from Phoenix AZ, using Photoshop 7 with Windows EX, writes in with:
I can't work with background because when I am opening first file ( layer) it is always background but locked .
I tried to copy a background to another layer but it locked too.
How I can unlock my background
If you can provide a good answer to this question, then comment below. Thanks for your help!
(Someone said: double-click background in layers palette and re-name.)