Office 365 Business Premium

Rob M (IT) 0 Reputation points
2023-04-05T17:01:11.36+00:00

To all my fellow IT people out their...... We have recently migrated over our 300+ clients to Microsoft 365 with business premium licenses from office 2016. This was quite a feat as it took several months of migrating certain users and then connecting with each individual to remove the office 2016 applications and then proceed to install office 365 applications with their business premium licenses. We have recently had several issues with activations which we have resolved with updating certain reg keys such as SignInOptions DWORD value changing to 0. This has resolved the error of "This Feature is disabled by your administrator". Recently within the last few days we have had users getting the error "Account Switch Detected". We initially thought this could have been a compromise of the users account and had them change their passwords and force sign out from the Microsoft Admin console online. This did not resolve the issue. We had to proceed to blowing away the whole users profile on the computer and start from scratch and then include the missing reg key for SignInOptions under Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\signin. This has resolved our issue but we still are living in the unknown as their are no answers as to why this is happening. This has become very frustrating for an organization of 300+ employees and only 5 technicians to support. If anyone can give me a clear and decisive answer as to why this is happening it would be greatly appreciated. The users are not signed in to any other machine and have each their own laptops. Compromised accounts is also not the reason as we have verified. I am somewhat wondering if this has any reason to do with leftover reg keys from previous office versions. We obviously removed the office 2016 standard edition before installing the new office 365 version as was required but I am now wondering as well if an office software removal tool is needed whenever moving from one version to the other. Someone please help. Any recommendations would be greatly appreciated moving forward as I do really hope this does not continue to be a problem and was maybe just a fluke instance.
I would also like to point out the fact that on our Office 365 admin console shows that these select few users have a Microsoft 365 Business Premium license assigned to them and are still able to log into office.com and go to account management and see that the license is assigned to them as well. None of this really makes sense when it comes to a licensing issue so that is not a factor in these equations. Please keep that in mind when replying with an answer. Just looking for some out of the box thinking or actual detailed reasoning and solutions.
Thank you

Microsoft 365
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Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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A Microsoft operating system that runs on personal computers and tablets.
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Office Management
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Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Emi Zhang-MSFT 22,556 Reputation points Microsoft Vendor
    2023-04-06T07:28:39.2166667+00:00

    Hi @Rob M (IT),

    Did you remove the Office 2016 license from PC?

    In my opinion, the problem is due to that the old license has not been completely removed from PC.

    I suggest you check the status of Office license in PC, please follow these steps:

    Search CMD, right-click the Command Prompt and run as administrator. Then copy and paste the command, click Enter at last:

    cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /dstatus

    If you are running 32-bit Office on a 64-bit operating system:

    cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus

    User's image

    If you can find the Office 2016 product key in list, try to remove it by typing the following command with the Last 5 characters of installed product key (I replace it with XXXXX, but what you type in is what you see on your computer) in this interface:

    cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX

    If the 32bit version of Office installed on a 64bit operation, run the following command:

    cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX

    User's image

    Just checking in to see if the information was helpful. Please let us know if you would like further assistance.


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  2. Toni Mosley-Hall 0 Reputation points
    2024-01-13T05:05:10.12+00:00

    Why did my Business Premium account change to Business standard?

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