similar to the question,i have found here Error deleting Managed Account
am using SharePoint 2010 Server and when I try and delete this account I get this error.
The account DOMAIN\muser1 is still being used by these components: SharePoint Server Search.
What am i doing wrong ? i tried to delete this using powershell, but that also thrown into error.
$account = Get-SPManagedAccount -identity "domain\muser1" Remove-SPManagedAccount $account
and when i tried to select the newly created special id account for the sp search in "configure service accounts link in central admin" , after selecting the
search dropdown item and clicking ok, am getting the below error
'mapAccountPicker' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
Troubleshoot issues with Microsoft SharePoint Foundation.
Correlation ID: 642976cd-5cbe-4f66-8d3f-be5aa76d6853
Date and Time: 10/16/2017 5:24:51 P