To switch from the new Outlook for Windows to classic Outlook, turn off the New Outlook switch, usually at the upper-right of the Outlook window, and confirm the option to return to classic Outlook if prompted. If you do not see the switch, search the Windows Start menu for Outlook (classic); the classic app may be installed separately.
What “classic view” means in Outlook
People use “classic view” to mean two different things. Most often, they want the older desktop application, with its familiar ribbon, folder list, and message list, rather than the newer Outlook for Windows. Switching applications is different from changing how messages are arranged inside classic Outlook.
First check which app is open. The newer Windows app is generally labeled Outlook and may show a New Outlook switch. The older desktop program is listed in Start as Outlook (classic). If you are already using Outlook (classic) but its inbox looks unfamiliar, use the View controls described below rather than looking for a switch to the old app.
Switch back on Windows using the New Outlook switch
When both versions are available, the switch is the simplest route. The precise prompt can vary with Outlook’s version and how an organization manages its apps, but the basic process is:
- Save any unfinished message and allow recent changes to sync.
- In the new Outlook window, find the New Outlook switch, usually near the upper-right corner.
- Turn the switch off. If Outlook asks whether you want to return to classic Outlook, choose the option to switch back.
- Wait for classic Outlook to open. If it does not open automatically, search Start for Outlook (classic) and launch it.
Some versions ask for feedback or offer a choice to keep using the new app. Read the prompt and select the return-to-classic option if that is your goal. A restart or brief wait may be needed. If you see no switch, do not assume your mailbox has been removed: use the separate-app checks in the next section.
If the switch is missing or classic Outlook will not open
The switch only helps when the classic desktop app is available to your Windows account and device. It may be absent because classic Outlook is not installed, the device is managed by an employer or school, or the app has been updated or configured in a way that hides the control. Try these checks:
- Search Start: Open the Windows Start menu and search for Outlook (classic). If it appears, open it and optionally pin it to Start or the taskbar.
- Check installed apps: In Windows Settings, open Apps > Installed apps and search for Outlook. The exact listing depends on how Microsoft 365 or Office was installed; the newer Outlook and classic desktop Outlook can appear as separate apps.
- Ask your administrator: On a work or school computer, an administrator may control which Outlook versions can be installed or launched. Ask whether classic Outlook is included in your organization’s Microsoft 365 deployment.
- Repair or install Office only when appropriate: If you have a Microsoft 365 or Office license that includes the desktop Outlook app, use your organization’s approved installation process or Microsoft’s account portal. Do not download an Outlook installer from an unfamiliar site.
If Outlook (classic) appears in Start but fails to launch, restart Windows and try again. If the problem continues, check for Office updates or use the Microsoft 365/Office repair options available through Windows Settings. A repair can take time, so close Office apps first and follow any prompts. On a managed computer, contact IT before changing an installation.
How to return to classic Outlook on a Mac
Outlook for Mac has also offered a New Outlook switch, but the appearance and availability of the control depend on the installed version and account or organization settings. If you have the new Mac interface, look for the New Outlook switch near the upper-right of the Outlook window and turn it off. Follow any prompt to return to the legacy interface, then allow Outlook to reopen if requested.
If there is no switch, check whether your organization or version still provides the legacy Outlook app; a switch cannot restore an app that is unavailable on that installation. You can also ask your administrator or check Microsoft’s current Outlook for Mac support information. Mac menus and keyboard shortcuts differ from Windows, and Windows instructions such as searching the Start menu for Outlook (classic) do not apply to macOS.
Outlook on the web and mobile are different
Outlook in a browser does not have a control that turns the website into the classic Windows desktop program. Its layout can change as Microsoft updates the service, but it remains Outlook on the web. To use the desktop classic interface, open the installed Outlook (classic) app instead. If you use Outlook.com, your browser may also offer its own display or density settings; those affect the web page, not the desktop application.
The Outlook mobile apps for iOS and Android likewise do not have a classic desktop mode. They provide mobile layouts designed for touch screens. You can still access the same mailbox on multiple devices, subject to your account’s sync and organization policies, but the controls and appearance will not match classic Outlook for Windows.
What changes when you switch apps
Switching the interface does not, by itself, mean that your mailbox has been deleted. Mail stored in Microsoft 365, Exchange, Outlook.com, or another connected server account is generally accessed by signing in to the account in the other app. Outlook may need time to download messages, calendar entries, and folders, especially on the first launch. Confirm that you are opening the intended account before assuming older mail is missing.
However, the two apps do not have identical features or settings. An account may need to be added or signed in again, and interface preferences made in one app may not carry over to the other. Local mail files, account types, add-ins, and organization-specific tools can also behave differently. For example, classic Outlook supports desktop features such as many COM add-ins and VBA-based workflows that are not supported in the same way in new Outlook. If your work depends on a local archive, a specialized add-in, or a custom process, confirm its availability before changing your regular workflow.
For work accounts, the organization’s policies determine which features and apps are allowed. For personal accounts, check that messages and calendar items have finished syncing before closing the app or removing an account. If you cannot find a particular folder after switching, check the account list and folder pane, then give the app time to synchronize before making changes to the account.
Restore a familiar layout inside classic Outlook
If classic Outlook opens but the inbox still does not look the way you expect, adjust its view. These controls change the layout within classic Outlook; they do not switch between the new and classic applications.
- Change the message list: Open the View tab, choose Change View, then select an available layout such as Compact, Single, or Preview. The options shown can depend on the folder and Outlook version.
- Move or hide the reading pane: On the View tab, choose Reading Pane, then select Right, Bottom, or Off. Turning it off makes you open messages separately.
- Show the folder list: Choose View > Folder Pane, then select Normal if the folder list is hidden or minimized.
- Restore a changed folder view: If only one folder looks wrong, use View > Reset View where available. This resets that folder’s view customizations, so use it only if you are comfortable losing those layout changes.
For example, someone who wants a traditional three-column arrangement can show the Folder Pane, keep the message list in Compact view, and put the Reading Pane on the right. Another person may prefer the Reading Pane off to avoid opening messages in a side panel. These are personal display choices and do not change the underlying mail or account.
Common problems and sensible checks
If classic Outlook opens but appears empty, first confirm the account shown in the app and check whether it is still synchronizing. Search for a known message and inspect the folder list, including any archive folders. A different account, a filter, or a hidden folder can make a mailbox appear incomplete even when the data is still present.
If a prompt keeps returning you to new Outlook, use Start to launch Outlook (classic) directly and pin that app for future use. If you see only the new app in Start, the classic application may not be installed or may be unavailable under your organization’s setup. If the switch is disabled, avoid trying to bypass company controls; ask IT which version is supported.
Finally, distinguish a display problem from a sign-in or synchronization problem. A changed Reading Pane or message-list layout is solved in the View tab. Missing messages, repeated password requests, or errors syncing folders usually require checking the account, connection, or organization settings instead. Avoid removing an account or deleting local data as a first troubleshooting step.
Frequently Asked Questions
Can I switch back to classic Outlook without losing my emails?
Switching apps does not itself delete server-stored email. Sign in to the correct account and let it sync. Local archives and other data sources can differ between apps, so check their availability before changing or removing accounts.
Why can’t I see the New Outlook switch?
The classic app may not be installed, or an organization’s policy or your Outlook version may hide the switch. Search Start for Outlook (classic), check with your administrator, and use an approved Office installation if your license includes it.
Is changing the Outlook view the same as switching to classic Outlook?
No. The New Outlook switch changes which app you use. The View tab’s Change View, Reading Pane, and Folder Pane commands alter the layout inside classic Outlook.
Can I get classic Outlook in a web browser?
No. Outlook on the web has its own web layout and does not become the classic Windows desktop app. Open Outlook (classic) on a computer where that desktop program is installed.
Does classic Outlook work on a Mac?
Outlook for Mac may offer a switch back to its legacy interface, depending on the version and account or organization settings. Look for the New Outlook switch in the app; if it is missing, check current Microsoft support information or ask your administrator.
Related
- How to Add an Image Box to an Excel Data Entry Form
- Regression Analysis in Excel: Steps, Results, and Meaning
- Data Cleaning in Excel: Practical Techniques That Work
Try it: the Date Difference Calculator: days, months, years and weekdays between two dates, with the DATEDIF formulas.
More in How-to basics
- How to Keep Track of Expenses in ExcelTo keep track of expenses in Excel, create a table with one row per purchase, record the date,…
- How to Delete a Second Page in a Word Document QuicklyTo delete a second page in Microsoft Word, first check whether it contains text or is blank. On…
- Block an Email Sender by Name in Outlook: What WorksOutlook cannot reliably block a sender using only the display name shown in the From line. To block…
- How to Clear the Outlook GAL CacheTo refresh the Global Address List (GAL) cache in classic Outlook for Microsoft 365 on Windows, select Send/Receive…
- Excel Freeze Panes: How Many Rows Should You Select?If Excel freezes too many rows, unfreeze the panes and freeze them again from the cell immediately below…
- Google Sheets If Zero Then Blank: Formulas That WorkYes. To show a blank instead of a zero in Google Sheets, use an IF formula such as…
Sources: Function behaviour and menu paths: Microsoft Support documentation for Excel. Method & sources
Spotted an error in this guide? Let us know.