You open Control Panel, go to Mail, and click Show Profiles. You select the profile you want to delete and click Remove, but nothing happens or the Remove button is grayed out. This problem occurs because Windows or Outlook has a lock on the profile files, the profile is set as the default, or the Mail applet is not reading the correct registry key. This article explains the technical cause and provides step-by-step fixes to remove the stuck profile.
The root cause is that Outlook keeps a handle open on the profile’s data files, or the profile is protected by Group Policy. In some cases, the Mail applet in Control Panel shows profiles from a different registry location than where Outlook stores them. This article covers registry edits, deleting the profile folder manually, and using the Mail applet correctly to force the removal.
Key Takeaways: Removing a Stuck Outlook Profile
- Control Panel > Mail > Show Profiles > Remove: Works only when Outlook is closed and the profile is not the default profile
- Regedit: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Profiles: Delete the profile subkey directly if the Remove button is grayed out
- Delete profile folder from %LocalAppData%\Microsoft\Outlook: Removes residual .pst and .ost files that prevent the profile from being removed
Why Outlook Profile Removal Fails in Control Panel
When you attempt to remove an Outlook profile from Control Panel, Windows must release all file handles to the profile’s data files. Outlook keeps an open handle on the .ost file for the current profile and on the .pst files that are attached to that profile. If Outlook is running in the background, even if you closed the window, the handles remain locked.
Another cause is that the profile is set as the default profile. Windows will not allow you to delete the default profile through the Mail applet. You must first set a different profile as the default, then remove the unwanted one.
Group Policy can also block profile removal. If your organization enforces a policy that restricts profile deletion, the Remove button will be disabled. In this case, you need to work with your IT administrator or edit the registry if you have local admin rights.
Finally, the Mail applet reads profile information from the registry. If the registry key is corrupted or if there are orphaned entries from a previous Office installation, the applet may show profiles that cannot be removed through the normal interface.
Steps to Force Remove an Outlook Profile
Method 1: Close Outlook and Remove from Control Panel
This is the first method to try because it is the safest. It works when the profile is not the default and Outlook is fully closed.
- Close Outlook completely
Open Task Manager with Ctrl+Shift+Escape. Look for any Outlook.exe processes on the Processes tab. Select each one and click End Task. Also check for any background processes under the Details tab. - Open Control Panel and go to Mail
Press Windows+R, typecontrol, and press Enter. Change View by to Large icons. Click Mail (Microsoft Outlook). - Click Show Profiles
In the Mail Setup window, click Show Profiles. You see a list of all profiles. - Select the profile and click Remove
Highlight the profile you want to delete. Click Remove. Click Yes when prompted. If the Remove button is grayed out, skip to Method 2 or Method 3.
Method 2: Delete the Profile Registry Key
If the Remove button is grayed out or does nothing, delete the profile directly from the registry.
- Close Outlook
Ensure Outlook is closed. Check Task Manager again for remaining processes. - Open Registry Editor
Press Windows+R, typeregedit, and press Enter. Click Yes on the UAC prompt. - Navigate to the Outlook Profiles key
Go to this path:HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Profiles
For Outlook 2016, 2019, or 2021, use 16.0. For Outlook 2013, use 15.0. For Outlook 2010, use 14.0. - Locate the profile subkey
Under Profiles, you see one or more subkeys. Each subkey name matches the profile name shown in Control Panel. Right-click the subkey you want to remove and select Delete. Click Yes. - Delete the profile folder manually
Press Windows+R, type%LocalAppData%\Microsoft\Outlook, and press Enter. Delete any .ost or .pst files that have the same name as the profile. Do not delete files for profiles you want to keep. - Restart Outlook
Open Outlook. It will prompt you to choose a profile. Select the remaining profile or create a new one.
Method 3: Remove the Default Profile and Delete Orphaned Keys
If the profile is set as the default, you must change the default before you can delete it.
- Open Control Panel > Mail > Show Profiles
Follow steps from Method 1 to open Show Profiles. - Set a different profile as default
Under the General tab, select Prompt for a profile to be used. Or select Always use this profile and choose a different profile from the dropdown. Click Apply, then OK. - Remove the unwanted profile
Open Show Profiles again. Select the profile you want to delete. Click Remove. If the Remove button is still grayed out, proceed to the registry method. - Delete the profile from the registry
Follow Method 2 steps 2 through 6 to delete the registry key and the local data files.
If Outlook Still Has Issues After the Main Fix
Remove button is still grayed out after changing default profile
This indicates that the profile key in the registry is locked by a system process or that Group Policy is blocking removal. Run the Group Policy Result tool to check. Press Windows+R, type rsop.msc, and press Enter. Expand Administrative Templates > Microsoft Outlook 2016 > Account Settings. Look for the policy “Prevent adding or removing accounts.” If it is enabled, contact your IT administrator. If it is not enabled, delete the registry key directly as described in Method 2.
Profile shows in Control Panel but not in the registry
This happens when the Mail applet reads from a different registry hive. Check both of these locations:HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\ProfilesHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles
Delete the subkey that matches the profile name from the appropriate hive. Then delete the profile folder from %LocalAppData%\Microsoft\Outlook.
Outlook prompts for a deleted profile on startup
This means the profile was deleted from Control Panel but the data files still exist. Go to %LocalAppData%\Microsoft\Outlook and delete any .ost or .pst files that belong to the deleted profile. If Outlook still shows the profile name, clear the MRU list in the registry. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Profiles and delete the entire Profiles key. Restart Outlook. It will recreate the key with only the active profile.
| Item | Control Panel Removal | Registry Deletion |
|---|---|---|
| Required tool | Control Panel > Mail applet | Registry Editor (regedit) |
| Outlook must be closed | Yes | Yes |
| Removes default profile | No, must change default first | Yes, directly removes any profile |
| Removes data files | No, only removes the profile entry | No, you must delete files separately |
| Group Policy bypass | No, blocked if policy enabled | Yes, unless registry access is restricted |
| Risk level | Low | Medium — incorrect edits can break Outlook |
You can now remove any stuck Outlook profile using Control Panel, the registry, or by deleting data files manually. If you frequently need to manage profiles, try the Microsoft Support and Recovery Assistant (SaRA) tool, which automates profile removal and repair. Before editing the registry, always export a backup of the Profiles key by right-clicking it and selecting Export — this lets you restore the key if something goes wrong.