The growth was a reversal of the previous three quarters, and was due to a rise in commercial notebook shipments driven by Windows 10 PC refreshes, IDC said in a statement.
Another factor that led to this marginal rise was vendors stocking up in fear of a global shortage of Intel processors.
IDC New Zealand associate market analyst Liam Landon said: "“With Windows 7 end of life approaching in 2020, we are seeing more companies with legacy systems planning their upgrade to Windows 10, which is boosting shipments in the commercial segment.
"While the consumer market is seeing strong growth in niche areas, the overall market is facing a clear decline. Competition from smartphones and tablets is the primary cause, exacerbated by lower consumer purchasing power and a weakened New Zealand dollar."
The company said the total PC market was expected to have declined in the last quarter of 2018 and this trend would continue into the new year.
“A continued drop in consumer demand, as well as vendors facing supply constraints, especially shortages of Intel processors, combined with high numbers of commercial notebooks shipped in the previous quarter, will put a damper on end of year commercial shipments,” said Landon.