Have you ever wondered if your new Outlook is not working and wished you could go back to classic Outlook from new Outlook? As Microsoft has been migrating all Windows users to newer version of Outlook, with new interface, having multiple features, advanced workflows, and much more.
Somehow, if you are trying to switch back to old Outlook from new Outlook, then it depends on your computer whether classic Outlook is installed, and also whether switch back option is available or not in your account. Multiple users switch from new to classic Outlook because they are much more familiar with older Outlook interface. Also, those who regularly deal with PST files have many options for opening, exporting, and managing them, as well as specific features available only in Desktop Outlook.
In this guide, we will discover how to change back to classic Outlook from new Outlook, what to do when switch option is not available, and how to go back without unwanted changes to your Outlook account. Before we walk further, let’s look at screenshot of an actual user scenario who wants to go back to Outlook Classic.
Can I Switch Back to Old Outlook from New Outlook?
Yes, in case where Outlook Classic is already installed, users can easily go back from new Outlook to old Outlook. MS offers simple way for those who want to revert by using switch back option and Windows search (desktop feature). However, if toggle or back option is missing or greyed out, then it does not mean that your Outlook Classic data is gone, but it can be installed separately and accessed via M365 administrator.
Why Do People Search for How to Go Back to Classic Outlook from New Outlook?
Before we switch, let’s understand common reasons why someone wishes to change back to classic from new Outlook.
- More Familiar Interface:
Many users are more comfortable with older interface, as it offers traditional layout and ribbon navigation that most people love.
- Outlook Data Files Support:
Those users who regularly work with PST files for multiple purposes might prefer installing Outlook Classic over newer version.
- Several Advanced Features:
Some users who rely entirely on desktop Outlook features might find that they work differently in classic Outlook or are less available in new Outlook.
- Old Version is Still Popular:
It is quicker than new version, and managing multiple Outlook data files is way easier with no technical skills required to understand its workflow.
- Add Ons Integration:
Large businesses, organizations, and individuals using legacy Outlook add ins or configurations might need old Outlook for support.
Legacy Outlook vs New Outlook – Feature Comparison
| Capabilities | New Outlook | Classic Outlook |
|---|---|---|
| User Interface | Modern Layout | Familiar Desktop Interface |
| Data Files Workflow | Differs from Old Outlook | Built In PST Support |
| Add-ins Integration | Newer Outlook Add-ins | Traditional Configuration |
| Mailbox Management | Cloud Based | Manual Desktop Based |
| Local Data Workflow | Different Features | Extensive Data Management |
| Settings | New & Advanced Settings | Desktop Outlook Features |
How to Change Back to Classic Outlook from New Outlook? 2 Ways
In this section, we have mentioned two easy methods that help users to go back to old Outlook from new Outlook.
- Using Switch Back Option in New Outlook
- Try Windows Search
Let’s understand them quickly.
Method 1: Use Switch Back Option
Steps:
- Open New Outlook on your system.
- Search for toggle or reverting option in Outlook.
- Choose option to switch back to Outlook Classic.
- If confirmation popup appears, then follow given instructions.
- New Outlook will close automatically and redirect to old Outlook.
- Open Outlook Classic and verify your mailbox data that is available.
This is first method that users should usually try if they want to go back to classic Outlook from new Outlook.
Method 2: Try Windows Search Feature
Steps:
- Tap Windows Start button
- Write Outlook in search box and look for classic application.
- Launch it on your system.
- Configure it or choose your existing Outlook profile if showing.
This solution is useful when new Outlook launches automatically again and again, even if old Outlook is still installed. One can also right click on legacy Outlook and select available option to pin it to taskbar. This will work as shortcut, which makes it easier to run in future.
What If Toggle or Switch Back Option is Missing?
It is one of most faced problems users have encountered where they cannot able to find built in switch back option in Outlook Classic. However, there can be several reasons for same.
- If Classic Outlook is Not Installed
- Your Organisation’s Admin Controls Outlook Settings
- Microsoft 365 Installation has Changed
Common Problems After Reverting to Outlook Classic
Here are some issues listed below when users try to go back to classic Outlook from new Outlook.
- Firstly, your old Outlook will not open, and if it is installed, then try this:
- Restart your Windows.
- Open Outlook again using search option.
- Check if there are any updates from M365.
- Also, look whether another process is already running.
- Outlook Data Files Are Not Appearing
If your PST files cannot be found, then follow these steps:
- Open Classic Outlook
- Press on File > Open & Export > Open Outlook Data File
- Choose PST file that you want to check.
- New Outlook Keeps Opening
If anyone has made an Outlook shortcut, and when he or she tries to open it, then it automatically launches new Outlook application. In such case, one can search for Outlook (Old) installed on your desktop and launch it directly.
- Some Features Are Greyed Out
Features availability might vary between Outlook Classic and new Outlook. If any feature is used earlier, it might be unavailable in other versions of Outlook. Users need to check whether options are available and also supported by current Outlook edition they are using.
Is Old Outlook Still Available in 2026?
Simple answer is yes, Classic Outlook is available and still very popular email client among many users. However, MS is migrating all legacy users to New Outlook for Windows. Microsoft states that Outlook Classic will remain available until 2029, so for those users who need traditional desktop program can still use it.
Availability of switching features might change over time, but users do not have to worry about their Outlook data. Also, one can read MS latest Outlook documentation for installation instead of relying on other ways for old Outlook.
Read Also: Outlook Classic End of Life
For large businesses or organizations, migration may depend on their administrator and M365 deployment settings.
Can User Use New Outlook and Legacy Outlook Together?
In some Windows integrations, users can experience both Outlook on same computer. This can be useful for users who need to access smooth workflow that is supported by old Outlook while also running new Outlook.
However, one should be very careful about which application is configured as default Outlook and should avoid making unwanted changes to Outlook profile and its data files when switching back to old Outlook from new Outlook.
Final Verdict
In this article, we have discovered how to go back to classic Outlook from new Outlook using built in switch back option and launch it directly via Windows search. However, before all this, one must check whether old Outlook is installed or not. If it is not appearing, then check M365 installation and other policies before installing application again.
Moreover, for those users who rely on Outlook files or their local data, then it is recommended to take backup of them before making any changes. Hope you find this helpful, and if you face any errors, then feel free to contact our support team.
FAQs on How to Go Back to Classic Outlook from New Outlook
Q.1 Why Can’t I Switch Back to Old Outlook?
A. One might not be able to change back in such case, like:
- Classic Outlook is not installed.
- Switch back option is missing or greyed out in your configured version.
- When admin controls your Outlook settings.
Q.2 How Do I Toggle Back to Classic Outlook from New Outlook?
A. Users can look for changing option in new Outlook. If it is unavailable, then they can also use Windows search feature to run Outlook Classic directly.
Q.3 Can You Switch Back to Old Outlook from New Outlook?
A. Yes, only where Outlook classic still present and configured on user’s computer. Also, using switch back option might depend on multiple parameters, such as Outlook version, M365 setup, and other policies.