Hi,
It could be that the cache for the account was still being stored in the registry.
I suggest you try the method below to delete the Office profile that may still be cached:
Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
- From Registry Editor, browse to: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Identity\Identities
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Choose the Office profile that you want to delete, and then choose Delete.
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From the Identity hive, navigate to the Profiles node, choose that same identity, open the shortcut menu (right-click), and then choose Delete.
The steps above are quoted from this article below, you may also learn something useful from it:
https://technet.microsoft.com/en-us/library/jj683102.aspx?f=255&MSPPError=-2147217396
Regards,Melon Chen
Forum Support