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How To Fix Microsoft Office 365/2021/2019 Installation Error Code 30088-28

Microsoft Office, since the launch of Windows 10/11 is showing this Office 365/2021/2019 installation Error code 30088-28 during the time of office 365/2021/2019 installation and we have created the following steps to troubleshoot. Microsoft Office 365/2021/2019 Error code 30088-28 will occur on Microsoft programs like Office, Outlook, Word or Excel. Usually when you install them by doing a second-time installation which means you might have previously used such programs on the computer.

Images used in this portal are only for the depictive purpose to explain the issue and solution in detail. None of our team is selling or using these images for other purposes. In case you find anything is unsuitable feel free to write to us related to the content if any. The Office 365/2021/2019 installation program is very important software and should be maintained with good security and take necessary safety measures, As this is the most quickly affected program with spyware and another virus because it involves the use of additional programs for enhancements. Also, it stores and manages a lot of data on these files. 

microsoft office update error code 30088-28

Causes of Microsoft Office 365/2021/2019 Update Error Code 30088-28

Whenever you face this  Microsoft Office  365/2021 Update Error Code 30088-28, we advise you to collect basic information required for troubleshooting.

  • Keep the program source readily available for reinstallation.
  • Keep your product key ready for activation.


Microsoft Office registry keys involve into the Current User, Local Machine and Default user which are mainly affected areas when the Registry corruptions in Office and mostly the keys related to Office are unable to delete due to permissions restrictions.


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Solutions to Fix Microsoft Office 365/2021 installation Error Code 30088-28

Error code 30088-28 in Microsoft office 365/2021/2019 repair can be done by the following methods.

Method 1:

Step1: Right-click on Start menu and access <control panel>

Step2: Select “Programs and Features”

Step3: Search and repair Office program.

If a repair fails to work


Step4: try to uninstall the program first.

Step5: delete the traces from the registry

If you cannot delete office

It is time to take your computer for diagnosis with a technician. We suggest you

Similar Case

An office can be installed offline using a DVD without internet connection but there are users who reported that the issues are still unresolved and having the same troubles.


There may be multiple reasons for Office 365/2021 Error code 30088-28. Our technicians have investigated with various users. We have realized they need some registry repair. One of the most important question which was frequently asked was why everyone is getting the same Microsoft office 365 installation Error code 30088-28. We have examined and checked there are different third-party programs which are controlling your system registry, most of them are Glary tools or free scanners and clean up tools. If you do a registry clean up, it could stop some of its services. We have one solution to delete corrupted registry and reinstall windows 10/11.


Before attempting these steps by yourself, make sure that you have to create a backup of all your files and folders to ensure that your data is secured.:-

Once the issue is resolved with Microsoft Office 365 Update Error code 30088-28, set a restore point on your Windows 10/11 operating system. This will be helpful to set it back in case of any repeated issues in the future.


Once the issue is resolved with Office 2019 Update error code 30088-28, set a restore point on your Windows 10/11 operating system. So that it will be helpful to set it back in case of any repeated issues in the future.


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