Microsoft 365 Update Error 30088-27

Anonymous

Can you PLEASE fix this?

This error message occurred after the update to 17726.20126

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Günter Born 49,461

here is the solution. you should specify specific update version, via cmd.

[source] https://borncity.com/win/2024/07/05/microsoft-office-click2run-update-broken-error-code-30088-27/

Disable Microsoft Office Updates (File/Office Account/Update Options and select the Disable Updates option)

Open an administrative command prompt and then enter the following command to go back to specified version.

[action]

in my case it was stuck on 16.0.17726.20126.

in my case i run:

"C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.17830.20166

change version number above, as newer versions come out: https://learn.microsoft.com/en-us/officeupdates/current-channel

Well, I'm the author of the blog post linked above. A reader came back to me with a comment, indicating, that Microsoft has changed the communication method for Office Click-to-Run.

Previously, OfficeC2Rclient.exe used the WinInet proxy settings (Internet Settings) to connect to Microsoft's cloud services.
Following the June update, OfficeC2Rclient.exe now utilizes the WinHTTP proxy (configured via NetSH) for communication.

The reader was able to configure the WinHTTP proxy via NetSH for his enterprise environment. But this morning (August 17, 2024, CET) I received feedback from two German blog readers, telling me, that the Office C2R Update issue has been solved "mysteriously". So I guess, Microsoft has changed something server-side to fix that issue.

If somebody has more details, feel free to drop me a comment within the blog post linked above.

Addendum: Microsoft seems to have fixed the issue on August 17, 2024 - several blog reader has reported this to me. See also the explanation in my blog post:

Has Microsoft fixed update error code 30088-27 in Office Click2Run?

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lmacri 2,505

... But this morning (August 17, 2024, CET) I received feedback from two German blog readers, telling me, that the Office C2R Update issue has been solved "mysteriously". So I guess, Microsoft has changed something server-side to fix that issue.

Hi Gunter:

Please ignore my previous rant.

Thanks for the heads up. Here’s hoping that Microsoft has released a permanent fix on their end that works for all MS Office C2R users.

Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4780 * Firefox v129.0.1 * Microsoft Defender v4.18.24070.5-1.1.24070.3 * Malwarebytes Premium v5.1.8.123-1.0.5007 * Macrium Reflect Free v8.0.7783 * Microsoft Office Home and Business 2019 C2R Version 2407 / Build 17830.20166

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lmacri 2,505

... Well, I'm the author of the blog post linked above. A reader came back to me with a comment, indicating, that Microsoft has changed the communication method for Office Click-to-Run ... If somebody has more details, feel free to drop me a comment within the blog post linked above.

Hi Gunter:

Mark Reyes as been posting prolifically about OfficeC2Rclient.exe and reconfiguration of the WinHTTP proxy in multiple threads I've subscribed to on this topic, including their 16-Aug-2024 post # 2696984 in the AskWoody.com topic Office Click-to-Run Updates May be Broken with Latest Version. While that "solution" might be helpful for IT administrators it's beyond the technical expertise of the majority of home consumers affected by this MS Office C2R 30088-27 update error, including myself.

Many (but not all) affected users posting in this MS Answers forum have also found that they can stop this 30088-27 error by enabling the setting at File | Office Account | Privacy Settings | Manage Settings | Connected Experiences | Turn On All Connected Experiences as shown below and restarting their computer (the re-boot is critical), in spite of the fact that this setting says "Connected experiences include things like analyzing content, downloading online content and online file storage. Outlook email services and essential services, such as downloading updates, will still work when this setting is not turned on."

Users who do not want to open a connection to Microsoft's online services like their personal OneDrive (or perhaps even give Microsoft implicit permission to scrape data from their Outlook emails and Word documents to train Microsoft's Copilot / AI language module) should not have to enable optional privacy settings in order to keep their MS Office installation updated. This is a problem that Microsoft needs to fix on their end, and in the mean time I will be keeping all my optional Office privacy settings disabled and using the command prompt method to update my installation and patch any security vulnerabilities.

_______________________________

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106 additional answers

Anonymous

2024-07-30T13:48:56+00:00

I've never changed those settings (for some reason) and never really looked at them. Regardless, they are on as you can see from the screenshot below and I'm still having issues.
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lmacri 2,505 Reputation points

2024-07-30T13:11:50+00:00

... I found I had disabled all setting in the Account Privacy Settings menu of Outlook on the PC which failed to update. I enabled all the setting in the Connected Experiences in Privacy Settings, closed and restarted Outlook with no change. The next morning after a PC reboot I tried again to update Outlook and it worked, now reports Outlook Version 2407 Build 17830.20094 and I am able to successfully check for updates on a daily basis.

Hi Lauriejm56:

Thanks for the hint, but could you be more specific? For example, are all privacy setting enabled on the computer that was not affected by the 30088-27 errors (i.e., do you know if automatic updates work if some of those optional data collection and Connected Experiences are disabled)? I have always had all optional data collection and Connected Experiences disabled in my MS Office 2019 C2R settings at File | Office Account | Privacy Settings | Manage Settings but that should not affect the delivery of automatic updates or any other basic functionality (see image below).

Again, something is odd with the MS Office C2R version number on your problem machine since you got automatic updates working again. As of today the release notes <here> for the "regular" Current Channel show the latest stable release is Version 2406 / Build 17726.20160 (rel. 09-Jul-2024). Your Version 2407 / Build 17830.20094 (rel. 22-Jul-2024) is an Insider Preview build. Other users posting in this topic have noted they received an Insider Preview build when they ran an online repair to update their MS Office C2R product.

Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4651 * Firefox v128.0.3 * Microsoft Defender v4.18.24060.7-1.1.24060.5 * Malwarebytes Premium v5.1.6.117-1.0.1280 * Macrium Reflect Free v8.0.7783 * Microsoft Office Home and Business 2019 C2R Version 2406 / Build 17726.20126
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