Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

This happens because Outlook sometimes blocks unknown attachments to safeguard users’ data. The error 0x800CCC13 in Outlook appears when trying to send an email. The error message indicates a connection issue but it can also occur due to other reasons, like incompatible add-ins, virus or malware intrusion, or bad sectors on the drive.

It often happens when you are using outdated PCs having low internal memory. However, you may experience this situation even if you use a modern computer with enough memory. So it is better to close all other programs while using Microsoft Outlook.

If you're using Outlook 2010, Outlook 2013 or Outlook 2016, uninstall and re-install iCloud to resolve this issue. This occurs because custom form script is now disabled by default. A lot of times, a user will click on something by accident and change their view and Outlook Fix Blog be unsure of how to get it back. If your internet is fine, but you still get Send and Receive Error in Outlook, go with the other solutions to resolve it. None of the events or information was lost in the move to the new calendar.

If Outlook is working fine, this means the real culprit was one of the add-ins you installed earlier. Make sure that you always download the Outlook add-ins from a reliable Outlook Fix Blog source. If you are experiencing the "Outlook Not Responding" error specifically due to a corrupt Outlook data file, then use the Outlook PST Recovery Software.

While using Outlook, you may encounter some common Outlook issues and errors, which may create problems for users. We have discussed in detail the 10 most common Outlook errors and the possible solutions to fix them. However, when you attempt manual methods, they may cause corruption in your PST files. Sometimes, when users perform these approaches manually, their files can become corrupted. If your Outlook data files have become damaged or inaccessible, opt for the Cigati PST Repair Tool. This software is sufficiently competent to recover the corrupted PST file into the actual data.

Reinstalling your Outlook client can fix installation Outlook Fix Blog errors and common software failures. In case of Outlook crash, re-installing the application is the most recommended method to fix the issue. To access the calendar shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android. If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove your permissions and then send a new invitation. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device.

When you enable this option, calendar actions are sent directly to the server instead of having to be synchronized from local storage. To fix performance issues that affect your Calendar, try the following methods. Also, determine whether any local network issues might be causing the problem. This includes issues that affect your local proxy server, firewall, or Internet service provider. Outlook uses an .ost file only if the Exchange email account is configured to use Cached Exchange Mode.

I have been using the New Outlook app for a few months now, no issues. I am able to open the older Outlook app, but cannot access the new app. I have restarted my laptop multiple times and tried to Uninstall the New Outlook but to no avail.

Be aware that if you are connecting to an Exchange Server mailbox, your mailbox or your email messages are already being scanned by antivirus software on the server. For more information, see You may experience application pauses if you have a large Outlook data file. Optionally, if you have a Microsoft Exchange online archive, you can move items to that archive or create retention policies to automatically dispose of older items.

To resolve this issue, switch Outlook from read-only mode and try moving your PST file from external drive to hard drive. You can check that the Outlook configuration settings are correct and your internet connection is stable. You may also temporary disable your firewall or antivirus program to check if it’s responsible for the error. If the PST file is corrupted, you can try repairing the file using the Inbox Repair Tool (SCANPST.exe).

I couldn’t find Outlook Fix Blog anything in the Event Viewer that points to the root cause, nor could I find any similar issues online. However, if you encountered other issues like Outlook not responding, learn how to fix Outlook not responding here. Once you have made these changes in your PST file, Outlook should open without encountering any more problems. Click the above link to have a quick download, then you can have Outlook errors fixed within minutes. If you do everything properly, Outlook will open when you use the new profile.