On 6 February she departed Suez for the United Kingdom via the Cape of Good Hope, calling at Mombasa (9 March) and Freetown (9 April), arriving in the Clyde on 14 April. On 6 June, she was taken in hand for refit at Chatham Dockyard, which lasted until September. Her anti-aircraft (AA) gunnery was augmented by eleven Oerlikon 20 mm cannons. Various radar sets were also installed; fire control radars for her main guns (Type 284), AA armament (Type 285) and barrage control (Type 283); an improved aircraft warning radar (the Type 281, replaced the Type 279), surface warning radar was also fitted, (the Type 272). Her aircraft facilities were removed. "Ajax" underwent post refit trials in October and after being recommissioned on 24 October, she worked-up at Scapa Flow with the Home Fleet during November. On 31 December, she joined Force Q at Bône, in Algeria for the interdiction of enemy convoys and convoy defence.