San Francisco - Microsoft reported a 25% plunge in quarterly profits as the company navigated away from its role as a software seller to a services model.
Shares in Microsoft, once the world's largest company, were down 4.3% in after-hours trade following the results, which were weaker than expectations.
The US tech giant posted a net profit of $3.8bn as revenues dipped six percent to $20.5bn in the fiscal third quarter to March 31.
Chief executive Satya Nadella said Microsoft was pursuing its shift to business and cloud computing services.
"Organisations using digital technology to transform and drive new growth increasingly choose Microsoft as a partner," Nadella said in a statement.
"As these organisations turn to us, we're seeing momentum across Microsoft's cloud services and with Windows 10."
Decline
The results showed a 2% drop in revenue from Windows, the PC operating system which has been the core for Microsoft for years, despite a larger drop in PC sales.
Microsoft said it managed to limit the decline because of a "higher consumer premium device mix".
The results showed further declines in Microsoft's smartphone business, which has failed to gain traction against the market-leaders using Google Android and Apple's iOS operating system. Phone revenues were down a hefty 46% from a year ago.
But Microsoft reported gains for its Office software and in business cloud computing, including a 120% revenue surge for its Azure cloud platform for enterprises.
The company also reported a 61% gain in revenue for Surface, the company's branded tablet system, fuelled by the introduction of Surface Pro 4 and Surface Book.
Microsoft has suffered amid a shift away from PCs to mobile devices.
Its long-time chip-making partner Intel this week announced a massive shakeup that will eliminate 11% of its global workforce to adapt to the new technology landscape.