Windows Insider update stuck in endless download install restart loop

Hi everyone, I accidentally enrolled my PC into the Windows Insider Preview Program and since then I am stuck in a continuous update loop. A new Insider update appears in Windows Update, it downloads to 100 percent successfully, installs successfully, then Windows asks me to restart to complete the update. After restarting Windows shows Updating for around 30 minutes but it never completes, then the system boots normally and when I check Windows Update again the same update starts downloading again from the beginning. This cycle repeats every time so the update never finishes, I cannot properly leave the Windows Insider Preview Program and Windows Update is effectively stuck. I would like to stop this update loop, safely unenroll from the Windows Insider Preview Program and return to the stable public release of Windows without losing any data. Has anyone experienced this before or knows how to fix it. Any help would be appreciated. Thanks, Muhammad Hasnain