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

The latest from Microsoft

This is Max from M365 Tech expert, I will be taking over this case from hereon as Dominic had a schedule change.

I see you have issues on version (Build 17726.20126 Click-to-Run) And as i noticed almost all users with the version is experiencing this issue. My recommendation for this one is to stop the office from getting updates for now until such time the back end would be familiar and come up with a fix. Until then I suggest reverting to previous version 20164....

Hi Pedro Hermida:

As I noted in my 09-Aug-2024 post <here> on page 8 of Prius 04's topic, there have been multiple security vulnerabilities patched in MS Office click-to-run (C2R) since Version 2405 / Build 17628.20164 was released on 19-Jun-2024 (see the CVE list at Release Notes for Microsoft Office Security Updates) so turning off automatic updates and rolling back to an older, unpatched version does not sound like a wise suggestion.

If you are on the "regular" Current Channel of any MS Office C2R product (e.g., Microsoft 365 C2R, Microsoft Office 2016 / 2019 / 2021 C2R) I think it would be much safer to copy and paste the command below into an elevated command prompt with Administrator rights to update to the latest Version 2407 / Build 17830.20138 released on 01-Aug-2024 to patch those known vulnerabilities:

"C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.17830.20138

Before you roll back to Build 17628.20164 I'd suggest you contact M365 Tech Expert Max and ask them to clarify if there's a specific reason why they are not suggesting an update to the latest available version as a temporary workaround. Once Microsoft has a bug fix for this 30088-27 update error I can't imagine any circumstance where they would not be able to push the fix out to affected users like me who are keeping their MS Office C2R installation up-to-date using this command prompt method.

Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4651 * Firefox v129.0.0 * Microsoft Defender v4.18.24070.5-1.1.24070.3 * Malwarebytes Premium v5.1.6.117-1.0.1280 * Macrium Reflect Free v8.0.7783 * Microsoft Office Home and Business 2019 C2R Version 2407 / Build 17830.20138

I just read that a MS Office user group is so disgusted with MS lack of response and support for this issue they are considering a class action lawsuit. Why would MS want to aggravate a very large group of long time licensed users by not responding to the issue? Unbelievable….

Nothing suggested works. This has gone on long enough. MS needs to fix this NOW. We paid good $ for this product/service.

Just got this from MS .... have not tried

Hello Pedro,

 

Good day to you. After completing my research, I have found a lot of cases with update issues for Office 365 Version 2406 (Build 17726.20126) on my end. These cases were recently resolved by running an online repair. Kindly try running an Online Repair and see how it goes. Please let us know once the Online Repair is complete.

 

Kind regards,  
Dominic
Microsoft 365 Tech Expert

I tried this suggestion numerous times on two machines and it just didn't work.

I appreciate you forwarding the response from Tech Support but am kind of surprised to learn that they don't know that doesn't work for everyone.

Has MS chimed in to indicate they are working on a solution?

No, they have not. Some users have been able to resolve the issue on their own, but MS has not posted anything relative to a patch, fix, or other resolution.

Hopefully, they're working on one, though.