"Duc d'Acquitaine" lost all her masts in the battle. She was taken to Plymouth Dockyard, Devon, Great Britain for assessment. On 23 June 1757, she was purchased by the Admiralty for £12,310, 0s, 0d, keeping her name. She was placed under the command of Washington Shirley on 7 March 1758. Refitting was completed in April at a cost of £4,596, 14s, 6d. She was now armed with 24×24-pounder, 26×12-pounder, 12×6 pounder and 2×9-pounder guns, giving a broadside of . Her complement was 590 men. On 5 June, she participated in the Raid on St Malo. Between December 1758 and March 1759, she was refitted at Plymouth Dockyard at a cost of £14,543, 14s, 2d. She was placed under the command of captain Sir William Hewett on 29 January. HMS "Duc d'Acquitaine" departed for the East Indies on 14 April.