On 16 January 1722 "Cornwall" was ordered to be taken to pieces and rebuilt at Deptford according to the 1719 Establishment. Remaining an 80-gun third rate, she was relaunched on 17 October 1726. After this, she served during peacetime in the Baltic and Mediterranean. She was not recommissioned until 1742, even though the War of the Austrian Succession had led to fighting between Great Britain and Spain in 1739. "Cornwall" initially served off Spain, but was later deployed to the West Indies where, in March 1748, she took part in the capture of Fort Saint Louis de Sud in the French colony of Haiti. In October 1749, "Cornwall" captured a 64-gun Spanish frigate during the defence of a convoy off Havana. She became a prison ship in 1755, ended her career in 1760 and was broken up in 1761.