<div>
Hi <br />
Please check out the below link that has a good workaround. It worked for us. It talks about deleting / modifying the registry. <br />
<br />
<a href="https://community.office365.com/en-us/f/172/t/179286" rel="ugc nofollow">https://community.office365.com/en-us/f/172/t/179286</a><br />
<br />
Changing the IdP value to 3 worked.
</div>


Hi
Please check out the below link that has a good workaround. It worked for us. It talks about deleting / modifying the registry.

https://community.office365.com/en-us/f/172/t/179286 [https://community.office365.com/en-us/f/172/t/179286]

Changing the IdP value to 3 worked.

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<div class="content wysiwyg-content">
Client inadvertently created then used portal accounts prior to a cutover migration to office 365.<br />
Client wanted to begin utilizing the Office Suite Software that they paid for.<br />
Unfortunately, cutover migrations require a clean portal (at least free from any soon-to-be DirSynced user).<br />
<br />
We asked client to create temp email address/365 portal accounts so users could sign out of Office 365 as their standard email/UPN accounts. &nbsp;<br />
They could then login to Office suite as the temp accounts.<br />
We would then delete all the non-temp accounts and perform our cutover migration.<br />
<br />
Issue:<br />
<br />
When user clicks Sign Out in Office (Word, for example - user clicks File &gt;&nbsp;Account &nbsp;&gt; Sign Out) they receive this error message:<br />
<br />
<b>We can't remove Windows accounts</b><br />
&nbsp;<a href="https://filedb.experts-exchange.com/incoming/2014/11_w47/884477/2014-11-21-1729.png" target="_blank" title="Office 365 Error (32 KB)"><img alt="Office 365 Error" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2014/11_w47/800_884477/2014-11-21-1729.png" /></a>We have attempted to use this article: <a href="http://support.microsoft.com/kb/2750229" rel="ugc">http://support.microsoft.com/kb/2750229</a>&nbsp;but to no avail.<br />
<br />
Just need to get past this issue to get started on the migration.<br />
Thank you for your time in advance.<br />
<br />
- KB
</div>
</div>


2014-11-21-1729.png

Client inadvertently created then used portal accounts prior to a cutover migration to office 365.
Client wanted to begin utilizing the Office Suite Software that they paid for.
Unfortunately, cutover migrations require a clean portal (at least free from any soon-to-be DirSynced user).

We asked client to create temp email address/365 portal accounts so users could sign out of Office 365 as their standard email/UPN accounts.  
They could then login to Office suite as the temp accounts.
We would then delete all the non-temp accounts and perform our cutover migration.

Issue:

When user clicks Sign Out in Office (Word, for example - user clicks File > Account  > Sign Out) they receive this error message:

We can't remove Windows accounts
 
We have attempted to use this article: http://support.microsoft.com/kb/2750229 but to no avail.

Just need to get past this issue to get started on the migration.
Thank you for your time in advance.

- KB

Office 365 Pro Plus - We can't remove Windows accounts when attempting to Sign On

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.