HP now plans to layoff 29,000 employees, increasing the total number of job cuts by 2000 over the next two years as it tries to kickstart growth.
HP, which will cut jobs through a combination of involuntary cuts and early retirement offers, expects to take charges of about $US3.3 billion through the end of HP's 2014 fiscal year for the workforce reductions, it said in a regulatory filing.
The company also expects to take another $US400 million in charges relating to data centres and real estate consolidation.
The world's No. 1 personal computer maker, which employs more than 300,000 people globally, has begun a multi-year restructuring aimed at focusing the sprawling company on services targeted at corporations.
CEO Meg Whitman, who took the top job last September, is trying to move the company past the internal upheaval that marked 2011, including the departure of two previous chief executives and the death of its touted TouchPad tablet.
HP will likely have cut 11,500 jobs by end of fiscal 2012, the company has said.
It revealed in May plans to cut 8 percent of its workforce, or 27,000 staff under a two-year restructuring strategy - the largest staff purge in HP’s 73-year history.