Thirty-seven days after Microsoft withdrew the Windows 10 October 2018 Update from all distribution, the Redmond, Wash. company has yet to restart delivery.

The delay has no precedent in Windows 10 and has gone on significantly longer than instances in prior editions when updates, most of them security fixes, had to be pulled and then later re-released.

Microsoft debuted the fall feature upgrade, also known as 1809 in the firm’s yymm format, on Oct. 2. Four days later – Oct. 6 – it retracted the release by yanking it from the Windows Update service and manual download sites, and warning users who had grabbed it to toss the disk image in the trash. The reason: Some users – Microsoft said 1/100th of 1% – reported that the upgrade deleted all files in several folders, including the important Documents and Photos directories.

On Oct. 9, Microsoft told those who had installed the upgrade to stay off their PCs and to call a toll-free number for help in possibly recovering some of the deleted files.

(Computerworld selected Oct. 6 as the start date for the delay because it was then that Microsoft halted dissemination.)

Other pauses – Microsoft’s term for upgrade or update stoppages – have been much shorter, with the company typically rolling out a re-release within a handful of days. For example, a 2008 security patch meant to plug a hole in Windows’ implementation of Bluetooth was re-issued in nine days. Earlier that same year, Microsoft took eight days to come up with a rejiggered fix for a math bug a previous patch had inserted into Excel. And in 2012, Microsoft re-released Office 2011 for Mac SP2 (Service Pack 2) five days after pulling it from distribution.