Microsoft's months-long delay in getting the latest Windows 10 feature upgrade to customers could not have come at a worse time.The slow delivery of Windows 10 October 2018 Update, also known as 1809 in Microsoft's nicknaming yymm nomenclature, may pinch enterprises' migration from Windows 7, impact the expected shift to longer-supported versions of Windows 10 and temporarily stymie businesses from skipping multiple upgrades.[ Related: How to clean up your Windows 10 act ]Windows 10 1809 only began a phased roll-out to customers - almost entirely consumers at the start - a week ago, even though the upgrade was initially released Oct.

2, 2018.

The roll-out should have started to show up on eligible PCs no later than the middle of October.