Microsoft 365, Office users hit by wave of ‘30088-27’ update errors

Over the last month, Microsoft 365 and Microsoft Office users have been experiencing "30088-27" errors when attempting to update the application.

Based on widespread user reports, the update problems plague Microsoft 365 users and those who use Click-To-Run (C2R) versions of Office 2016, 2019, and 2021.

"Something went wrong. We're sorry, we ran into a problem while looking for updates. Please check your network connection and try again later," the update errors read.

Some affected users report being told by Microsoft support that this issue also impacts the latest Office release, Version 2406 (Build 17726.20126).

A Microsoft community moderator advised those impacted to revert to the previous version and turn off automatic updates until the next Office release.

"Network reasons have been ruled out as possible causes. This problem has now become a hot topic in the community. In other threads, some users mentioned that this problem occurred after updating to Office version 17726.20126," the Redmond agent told them.

"The problem is solved by disabling updates and rolling back the version of Office."

​To do that, you must type Command Prompt in the Windows search box, right-click the Command Prompt entry, and click "Run as administrator."

Next, you have to paste the following commands in the Command Prompt window and hit Enter after each:

cd %programfiles%\Common Files\Microsoft Shared\ClickToRun
officec2rclient.exe /update user updatetoversion=16.0.17628.20164

After rolling back to the previous version, you can disable updates by going into File > Account and selecting "Disable Update" under "Update Options."

Microsoft has not replied after BleepingComputer reached out yesterday with questions about these ongoing Office update issues.

Two months ago, the company also shared a temporary fix for a known issue preventing Microsoft 365 customers from replying to encrypted emails via the Outlook Desktop client.

Recently, Redmond also rolled back a fix for an Outlook issue caused by the December Outlook Desktop security updates triggering incorrect security alerts when opening ICS calendar files, another known issue causing Outlook desktop clients to stop synchronizing with email servers via Exchange ActiveSync, and a bug causing connection problems for Outlook.com users on both desktop and mobile email clients.