This article describes Windows 10 Outlook error code 0x8000ccc90. It is a common issue in the Microsoft Outlook application. This outlook error code 0x8000ccc90 means that Windows live mail received an invalid response from POP3 server and trying to send/Receive emails by using the POP3 accounts simultaneously.

Disclaimers: Fixing an error code 0x8000ccc90 on Outlook deals with your emails and attachments. Please backup your emails and it’s folders before you proceed. If you are not sure about the procedure, contact the technician for the support.

Causes of windows 10/11 Outlook Error 0x8000ccc90:

System memory is failing

Disk file system integrity compromised

Incorrect credentials

port number changed

External applications

Suggestions for Outlook Error 0x8000ccc90 on windows 10/11 

program lock-ups

slow PC performance

system freezes

startup and shutdown problems

installation errors and hardware failure.

Applicable to the following operating systems for Windows 11 Outlook error 0x8000ccc90:

• Windows 10/11
• Windows 7, 8, and 8.1

Solutions to Fix Windows 10 Outlook Error 0x8000ccc90:

The Windows 10 Outlook error 0x8000ccc90 can be resolved by using the two methods.

Method 1:

Temporarily disable anti-virus

Repair& uninstall Windows Outlook

Reinstall Windows live essentials

1. Temporarily Disable Anti Virus:

If you have any third-party antivirus installed. We could be recommended that they are uninstalling or disable the antivirus and then checking. Windows 10/11 Outlook has keeps malfunctioning.

Click the Microsoft Security Essentials Icon in the Windows Notification area and then click open.

Click the Settings tab, then Real-time protection.

Uncheck the box next to Turn on real-time protection (recommended).

Save your changes.

2. Repair & uninstall Windows Outlook:

To Repair the Windows Outlook mail, then follow the below steps

Click start at the corner of the screen and open the control panel.

Then select programs and features.

Under the programs and features click uninstall a program.

Then select Windows live essentials and click the change option

Then click Repair Windows live programs.

Select the programs that you want to repair then click change.

Then the process is done. Otherwise, it can uninstall the live program.

To Uninstall the Windows Outlook, follow the below steps

Click start at the corner of the screen and open the control panel.

Then select programs and features.

Under the programs and features click uninstall a program.

Then select Windows live essentials and click the uninstall option.

Then click Remove one or more Windows live programs.

Select the programs that you want to uninstall then click uninstall.

Then the programs are uninstalled.

3. Reinstall Windows Live Essentials:

Download the latest versions of Microsoft live essentials from the official Microsoft website and Run the above live essentials by following the instructions on the screen. Then reinstallation is done.

Method 2:

This problem one can separate the POP3 accounts into smaller groups to make the Send/Receive process easier and effective.

• Open the Outlook application and click the Send /Receive option, then go to the send/receive groups and then select define send /receive groups.

• Another pop-up will open, click New and under the “Send/Receive Group Name” box give a name to the group. Under this new pop-up, choose the Accounts for which you want to create this group.

• You can choose more than one account as well and then select the “Include account in this send/receive group” checkbox.

• Select “Send Mail Items” and “Receive Mail Items” checkbox and click “Download complete item, including attachments” and click “OK”.

• You can create many such groups for small groups of accounts and once done, click “Close”.

• Now to send or receive an email for each group, go to Tools, point to Send/Receive and click the required name of the group.

In Conclusion:

Microsoft Live Assist