How to delete an Outlook Group

The process to delete unnecessary Outlook Groups is quite easy, and can be performed from Outlook or the Outlook Web App. Administrators can also delete Outlook Groups from PowerShell.
Here’s how it’s done.

How to delete a Group from Outlook

1. Click the Group in the left menu
2. Click Edit Group on the Ribbon
3. Choose Delete group on the bottom left corner of the Edit group window
4. Confirm that you want to delete the group

Azure AD Sync: Unable to install the Synchronization Service

When you try to remove the Azure Active Directory Sync tool , the uninstallation may not be successful, either because you did not uninstall the right product in the Programs and Features menu , or because the installation is corrupt.

In these cases, you may see the following error in the Azure Active Directory wizard: "  Unable to install the Synchronization Service. PLease see the event log for additional details .

Here are some ways to manually uninstall Azure Active Directory Sync.

Uninstalling products

In the Programs and Features menu , uninstall all of the following products:

With Azure Active Directory Connect

• Microsoft Azure Active Directory Connect Tool
• Microsoft Azure AD Sync
• Forefront Identity Manager Windows Azure Active Directory Connector
• Microsoft SQL Server 2012 Express LocalDB
• Microsoft SQL Server 2012 Native Client
• Microsoft SQL Server 2012 Command Line Utilities
• Microsoft Online Services Sign-in Assistant (restart required)
• Windows Azure Active Directory Module for Windows Powershell

With Azure Active Directory Sync (standalone)

• Microsoft Azure AD Connection Tool
• Microsoft Azure AD Sync
• Forefront Identity Manager Windows Azure Active Directory Connector
• Microsoft SQL Server 2012 Express LocalDB
• Microsoft SQL Server 2012 Native Client
• Microsoft SQL Server 2012 Command Line Utilities
• Microsoft Online Services Sign-in Assistant (restart required)
• Windows Azure Active Directory Module for Windows Powershell

Deleting folders

The uninstall wizard does not remove some folders, which can cause problems during a reinstallation.

You must delete the following folders:

With Azure Active Directory Connect

• C: \ Program Files \ Microsoft Azure Active Directory Connect
• C: \ Program Files \ Microsoft Azure AD Sync

With Azure Active Directory Sync (standalone)

• C: \ Program Files Azure AD Connection Tool
• C: \ Program Files \ Microsoft Azure AD Sync

Deleting the scheduled task

You must also delete the scheduled task that starts synchronizing objects in the cloud.

1. Open the Task Scheduler
2. In the Task Scheduler Library container , right-click Azure AD Sync Scheduler  and click Delete

Cleaning the registry

Open the registry as an administrator and delete the following keys if they still exist:

With Azure Active Directory Connect

• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ AD Sync
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Azure AD Connect
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Microsoft SQL Server Local DB
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ MSOLCoExistence
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Uninstall \ MicrosoftAzureADConnectionTool
• HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ ADSync
• HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ EventLog \ Application \ AzureActiveDirectoryDirectorySyncTool
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ AzureADConnect_RASAPI32
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ AzureADConnect_RASMANCS
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ DirectorySyncTool_RASAPI32
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ DirectorySyncTool_RASMANCS

With Azure Active Directory Sync (standalone)

• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ AD Sync
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Microsoft SQL Server Local DB
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ MSOLCoExistence
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Uninstall \ MicrosoftAzureADConnectionTool
• HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ ADSync
• HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ EventLog \ Application \ AzureActiveDirectoryDirectorySyncTool
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ DirectorySyncTool_RASAPI32
• HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Tracing \ DirectorySyncTool_RASMANCS

You can now restart the installation of Azure Active Directory Connect.