Yes, it is possible to retract a paper from a predatory journal. While predatory journals may not follow proper ethical and professional standards, they still have to follow legal regulations and retracting a paper is within your legal rights as an author. You can contact the journal's editor and request a retraction of your paper, stating your reasons for doing so. If the journal is unresponsive or refuses to retract your paper, there are other steps you can take, such as contacting the publisher or filing a complaint with relevant organizations. It's important to note that retracting a paper does not guarantee its complete removal from the journal's website or from other databases where it may have been indexed, but it does indicate that the author no longer supports the research or findings presented in the paper.
Dear Aziz Moummou It depends. Is it a new publication or one of your older publications? Can you say which journal you refer to (so it is possible to estimate your chances)?