However, when Harthacnut became king, Ælfric became a supporter of Harthacnut. During Harthacnut's reign, Ælfric was sent with others to disinter Harold's body and throw it away. In 1040, Lyfing was accused of taking part in the murder of Alfred and Ælfric used the temporary disgrace of Lyfing to acquire Worcester. In fact, the chronicler John of Worcester relates the story that it was Ælfric himself who accused Lyfing of being involved in Alfred's murder, although whether to curry favor with the new king Harthacnut or in order to acquire Worcester is unclear. Ælfric was deprived of both his sees in 1041. Ælfric's main political activities took place during Harthacnut's reign, although he attested charters of Cnut, Harold Harefoot and Edward the Confessor also. Ælfric translated the relics of John of Beverley into a new shrine at Beverley in 1037, and worked to foster the cult of that saint, by providing new buildings and giving endowments to the church. An oddity of his time as archbishop was that instead of the normal descriptor archiepiscopus on charters, Ælfric used archipraesul instead. He continued the work of his predecessor in founding houses of canons in his archdiocese. A late medieval source recorded by the early modernantiquarianJohn Leland claims that Ælfric created the offices of sacristan, chancellor, and precentor at Beverley.
Under Edward the Confessor
In 1042, Æthelric, who had succeeded to the see of York, was deprived of York and Ælfric was returned to York. Ælfric officiated with Archbishop Edsige of Canterbury at the coronation of Edward the Confessor at Winchester on 3 April 1043. Ælfric died at Southwell on 22 January 1051 and is buried in Peterborough Cathedral. While the later medieval chronicler William of Malmesbury felt that Ælfric deserved rebuke, the Anglo-Saxon Chronicle called him "very venerable and wise". Ælfric left his vestments and altar to Peterborough Abbey. Ælfric's nickname, or byname, "Puttoc" probably means "kite", and may have been an invention by the monks of Worcester to belittle Ælfric. It may have meant "buzzard" also. It never occurs without the Ælfric, so it is unlikely to have been a true second name. The Northumbrian Priests' Law which is usually attributed to Ælfric's predecessor Wulfstan II, Archbishop of York, might have been authored instead by Ælfric, or possibly Ælfric's successor Cynesige.