Bolton, who was 78 when convicted, preyed on homesick or vulnerable boys while he was a housemaster at the college, which closed in 1997.
The Crown Prosecution Service said, following the Appeal Court decision, said it had not applied for a retrial as the complainant did not wish to go through further proceedings.
Andrew Grove, the solicitor who has pursued compensation for the abuse victims, said, “The outcome of Mr Bolton’s criminal appeal should not affect the civil claims for compensation.”