HP has forecast strong financial results for 2011 as it seeks to reassure investors after the sudden departure in August of former chief executive Mark Hurd.
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Hurd cut costs and boosted efficiency at HP, but was forced to resign over allegations of false expenses claims and covering up a relationship with events contractor Jodie Fisher.
Within a month of his departure, Hurd took up a post at HP's rival Oracle as co-president.
HP forecast 12% to 14% growth in earnings in its fiscal year 2011, and revenue growth of 5% to 7%.
Although HP did not announce a successor to Hurd, the strong financial forecast helped company shares to gain 1.3% in after-hours trade.
The revenue forecast of $131.5bn (£83bn) to $133.5bn (£84.3bn) exceeded Wall Street's expectation of $131.4bn, according to Reuters.
Interim chief executive Cathie Lesjak said HP had an "extraordinary opportunity" to grow with its global reach and estimated market of $1.6tn in 2013.
HP's growth is expected to come mainly from its enterprise business, which the firm said planned to expand the sales team for its revenue-driving services division.
The firm also plans to expand sales teams to help HP take advantage of the fast-growing market for smartphones and tablet devices.