Resolving Outlook sync issues:
Check Your Internet Connection
- Ensure that your device is connected to the internet and that the connection is stable.
Restart Outlook
- Close Outlook completely and reopen it to see if this resolves the sync issue.
- Close Outlook and restart the device.
Verify Account Settings
- Go to File > Account Settings > Account Settings.
- Select your account and click Change to verify the settings are correct.
Check for Updates
- Ensure that your Outlook application is up to date.
- Go to File > Office Account > Update Options > Update Now.
Enable Cached Exchange Mode
- Go to File > Account Settings > Account Settings.
- Select your account, click Change, and ensure that Use Cached Exchange Mode is checked.
Repair Outlook Profile
- Go to File > Account Settings > Account Settings.
- Select your account and click Repair.
- Follow the prompts to complete the repair process.
Empty the Sync Issues Folder
- In the folder list, expand Sync Issues.
- Empty the Sync Issues, Conflicts, Local Failures, and Server Failures folders.
Reset the OST File
- Close Outlook.
- Navigate to the OST file location (usually found at C:\Users\YourUsername\AppData\Local\Microsoft\Outlook).
- Rename the existing OST file to .old.
- Restart Outlook to create a new OST file.
Run Outlook in Safe Mode
- Close Outlook.
- Press Windows + R, type outlook.exe /safe, and press Enter.
- Check if the sync issue persists in Safe Mode.
Disable Add-Ins
- Go to File > Options > Add-ins.
- Click Go next to Manage COM Add-ins.
- Uncheck all add-ins and restart Outlook.
Recreate the Mail Profile
- Go to Control Panel > Mail > Show Profiles.
- Click Add to create a new profile.
- Configure your email account and set the new profile as the default.
Check Server Status
- Ensure that the email server is not experiencing downtime or issues.
- Contact your IT department or email provider for server status.
Run Microsoft Support and Recovery Assistant (SaRA)
- Download and run the Microsoft Support and Recovery Assistant tool from the Microsoft website.
Review Antivirus and Firewall Settings
- Ensure that your antivirus or firewall is not blocking Outlook.
- Temporarily disable them to check if they are causing the issue.
By following these steps, you should be able to identify and resolve most Outlook sync issues. If the problem persists, contacting your IT support or Microsoft support may be necessary for further assistance.