How to Fix Outlook Room Finder Not Showing or Suggested Times Blank

If Outlook fails to display the Room Finder pane or shows a blank Suggested Times section while scheduling meetings, the problem usually sits in the Outlook client — not Exchange or permissions. This issue commonly affects Classic Outlook and occurs even when Outlook Web App (OWA) displays rooms correctly.

Why Outlook Room Finder Stops Working

Classic Outlook now renders Room Finder using web-based components, even though the app itself is desktop-based. When these components fail, Room Finder loads empty.

The most common causes are:

• A broken WebView2 runtime
• Corrupted Outlook or Teams add-in cache
• Incorrect Room Finder registry flags
• A conflicting Outlook add-in

Because OWA works correctly, Exchange, room mailboxes, and permissions are already fine.

Step 1: Repair Microsoft Edge WebView2 Runtime (Most Important)

Room Finder depends on Microsoft Edge WebView2 Runtime. If WebView2 breaks, Outlook cannot render the Room Finder overlay.

Repair WebView2

1. Open Control Panel
2. Go to Programs → Programs and Features
3. Find Microsoft Edge WebView2 Runtime
4. Right-click → Change
5. Select Repair
6. Restart Windows

After restart, open Microsoft Outlook, create a new meeting, and check Room Finder.

Reinstall WebView2 (If Repair Fails)

• Uninstall Microsoft Edge WebView2 Runtime
• Download the Evergreen WebView2 installer from Microsoft
• Reinstall and reboot

This forces Outlook to re-register its rendering engine.

Step 2: Clear Outlook and Teams Add-In Cache

Room Finder uses cached web data shared with Outlook and Microsoft Teams. Corrupt cache files often cause a blank panel.

Close Outlook Completely

Then delete all contents (not the folders) from:

%LOCALAPPDATA%\Microsoft\Office\16.0\Wef\

%LOCALAPPDATA%\Microsoft\MSTeams\

%LOCALAPPDATA%\Microsoft\Outlook\

Restart Windows after clearing the cache.
Open Outlook and create a brand-new meeting to test.

Step 3: Verify Room Finder Registry Settings

Incorrect registry values can silently disable Room Finder rendering.

Back up the registry before making changes.

Check User Preferences

Open Registry Editor and navigate to:

HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences

Ensure:

• RoomFinderShow = DWORD 1
• RoomFinderForceDisabled = DWORD 0 or does not exist

Check Policy Overrides (Common in Managed PCs)

HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Preferences

If RoomFinderForceDisabled equals 1, Outlook will never show Room Finder, even if everything else works.

Step 4: Test Outlook in Safe Mode

Safe Mode loads Outlook without third-party add-ins.

1. Press Windows + R
2. Run:

outlook.exe /safe

If Room Finder works in Safe Mode:

• Disable add-ins one by one
• Focus on calendar, CRM, or meeting tools

Do not permanently disable the Microsoft Exchange Add-in, as it controls Room Finder itself.

Step 5: Rebuild Outlook’s Local Web Profile (Advanced Fix)

If the issue still persists, force Outlook to rebuild its local profile data.

• Close Outlook
• Rename:

%LOCALAPPDATA%\Microsoft\Outlook

to

Outlook.old

• Reopen Outlook

This resets Outlook’s web rendering state without touching Office or your mailbox.

Why Reinstalling Office Rarely Fixes Room Finder Issues

Office repair or reinstall does not fully reset:

• WebView2 bindings
• Outlook WEF cache
• Per-user web rendering profiles

That is why Room Finder often stays broken after a reinstall.

Best Way to Fix Outlook Room Finder Not Showing

For the fastest fix, follow this order:

1. Repair or reinstall WebView2
2. Clear Outlook and Teams cache
3. Verify registry flags
4. Test Safe Mode

These steps resolve most Outlook Room Finder missing and Suggested Times blank issues without reinstalling Office or changing Exchange settings.