The actress, who left her iconic role as Peggy Mitchell last year, said that the cast and crew are the only aspect of the BBC One soap she misses.
"I miss the camaraderie and my mates. I loved coming into work and seeing everyone, the wardrobe and make-up people and runners. I miss that. That's about it," she told Metro.
Asked if she would ever return to the show, Windsor replied: "I don't know. I don't think so at the moment. She just went off, didn't she? I worried about leaving EastEnders but I've been very busy this year. I don't want to give the business up - it's looking bright."
Speaking of her proudest career moment, she added: "Being part of two great British institutions - Carry On and EastEnders - and to still be working."
She previously confessed that retiring from the world of soap had driven her mad.
Windsor recently said that she is "devastated" over Pam St Clement's departure from EastEnders, adding that she will be "sorely missed".