Update error code 30088-27 Office 2021 what to do to get corrected????

I have reported this to the Office team and they are interested in further troubleshooting which any users affected by this issue can share. See instructions below.

1.         Download and then run the self-extracting executable: https://www.microsoft.com/en-us/download/details.aspx?id=103236

2.         Accept the EULA, then select an extraction location for the tool: officedeploymentlogcollector.exe

3.         Run the tool from the folder selected in the previous step

4.         After running the tool, collect the log .zip manually from %temp%\C2RLogs

You can navigate to this folder by using Win + R and typing %temp%\C2RLogs, or typing directly in the address bar in file explorer.

I copied and pasted that exactly as it appears in the post.

My question is why, when it updates using the Online Repair.

Because Online Repair didn't work for me with respect to updating to the latest version (20160). I had to use the procedure I outlined.

It may be different in your case because you're not running Microsoft 365.

All three are Dells, (a G7-7700, Insprion 5482 and XPS 8930). All are running Windows 11 Pro and all are running Office Home and Business 2019.

I am running Office 365 on two Dells (XPS) with Windows 10 Pro installed. My Office version is 2406 (Build 17726.20160 - I upgraded that manually from the previous build); same issue on both machines with both builds.

On which machine are you experiencing the issue? Also, are you running Version 2406 Build 17726.20160?

The XPS is having the issue. It is the desktop version and the other two machines are both laptops. All are running the current build (17726.20160). The two laptops updated normally and the XPS was updated through an Online Repair as it continued (and continues) to display the error when a normal update is attempted.

You can then reinstall Office after force removal.

And your point is......? It will NOT help. This is a MSFT issue and needs to be resolved by MSFT. Read the posts in this thread.

Actually, we're not sure what the cause is. It may be related to machine settings, but we don't know what setting. Only one of my three machines exhibits this problem, but all three are running the same OS and version of Office. This is not a universal problem, so machine specificity is certainly on the table.