Supply constraints for entry-level CPUs would tend to moderate sales in the first half of the year, but the commercial market would compensate for this with renewal cycles through the public and private sectors, the company said in a statement.
Microsoft has said that it would end support and updates for Windows 7 on 14 January next year, and advised users to switch to Windows 10.
IDC said on the notebook front, thin and light devices and convertibles would show the strongest growth as the focus on a mobile workforce increased.
"The market is expected to gain further stability in the forthcoming quarters, thanks to continuous strong demand from large and medium-sized businesses through to the end of 2019 ahead of the end of life of Windows 7 in January 2020."
IDC said on the consumer side, the higher inventory, after a holiday season during which sales were weak, would affect sales in the first half of the year. But promotions to clear stock and expected price drops would make for a better second six months.
"The overall PC forecast was revised downwards in the CEE region for 2019Q2, following postponed deals in the public sector due to soft consumer demand and deterioration of economic conditions in some countries," said Nikolina Jurisic, program manager Europe.
"2Q2019 is expected to contract by 2.8% year-on-year, with the consumer space suffering the most. The second half of 2019 is expected to regain momentum thanks to SMB market growth, coupled with the expected public deals in the corporate sector.
"The MEA region PC forecast has been revised upwards from the previous forecast, across all the remaining quarters of 2019, driven by expected demand in the commercial space.
"The close date for the end of Windows 7 is a reminder to update the old installed base, where the public sector and SMBs are still using Windows 7. Consumer demand in the MEA region will remain double-digit negative in the next quarter, only improving in the second half of the year."