Outlook, Microsoft’s widely used email client that provides additional functionalities like calendar, contacts organizer, occasionally freezes a lot and slows down. Here are best techniques that can make your email handling quicker and smoother. Read on.
Download the Diagnostic
There are certain situations when missing entries in your registry and registry corruption causes this problem. Try running a registry scan to identify if there are any such issues.
- Click the button below to download and install the Diagnostic
- Perform a Registry scan and fix any problems detected.
- Restart your computer.

Estimated Download Time: 10 Seconds
Use Cached Exchange Mode
When enabled, Cached Exchange Mode saves a copy of your mailbox on the local hard disk, thereby increases the overall experience. Apart from providing quick access to the user, it regularly updates the mailbox with the Microsoft email servers.
1. Click File | Account Settings.
2. Click Change Account.
3. Click Server Settings.
4. Check-up theĀ UseĀ cached Exchange mode box.
5. Click OK.
Turn On Hardware Acceleration
This technology which forces your PC’s hardware to perform faster than regular might be helpful.
1. Open Registry Editor. To do so, type RegEdit and click it as soon as it is displayed under Search Results.
2. Locate the following subkey in the left panel:
- HKEY_CURRENT_USER | SOFTWARE | Microsoft | Office | 15.0 | Common | Graphics
3. Double-click the string called DisableHardwareAcceleration
4. Enter 0 and click OK.
5. Exit out of the screen; reboot.
Note: If you cannot find the Graphics subkey, just create it. Right click the Common parent key, choose New | Key. Specify the name Graphics. Right click the newly created subkey, select New | DWORD (32-bit) Value. Specify DisableHardwareAcceleration as the string name and enter the value 0.
Run Outlook in Safe Mode
The Safe Mode feature ensures only those email client components which are required for its smooth working and operations, are loaded. Any other third party components, add-ins, com-objects, which are not essential and may cause performance drops, are automatically disabled.
1. Press Windows Key + R.
2. Type the following command:
- Outlook /Safe
3. Click OK.
Disable Add-Ins
An Add-In is a piece of software that facilitates the use of extra functions that are not part of Microsoft Office Outlook program. Add-Ins can slow down the program, freeze it and, at times, result in crashes due to inter-version conflicts and incompatibility issues.
1. Click the File menu.
2. Choose Options.
3. Click Add-Ins.
4. Uncheck all add-ins displayed in the list box.
5. Exit the dialog and re-open the email client.
Disable Drive Mapping
The Drive Mapping feature associates a local hard disk partition with a network drive facilitating a shared storage space. This feature, which enables access to your files via WPI-licensed apps, can slow down Outlook performance. Use the command given below to disable this feature.
1. Press Windows Key + X; choose Command Prompt (Admin).
2. Execute below command:
- net use /delete * /y
3. After successful completion, reboot Windows.
Turn Off Animations
A Certain set of animations, visual effects that are part of your performance settings, can bring down app performance.
1. Open Registry Editor.
2. Locate following subkey:
- HKEY_CURRENT_USER | SOFTWARE | Microsoft | Office | 15.0 | Common | Graphics
3. Right-click an empty area on the right-hand side, choose New | DWORD (32-bit) Value.
4. Specify DisableAnimations as the name of your newly created string.
5. Specify 1 as its value.
Turn Off Transition Effects
Transition Effects are similar to the animations, which are typically used to add a sense of animation to a static app. Fix Outlook freezes by disabling the transition effects.
1. Type Performance in the Search Box on Taskbar.
2. Open Adjust the appearance and performance of Windows from the Search Results.
3. Click the Visual Effects tab.
4. Select Custom option.
5. Uncheck the box labeled Animate controls and elements inside Windows.
6. Click Apply, and then OK.