How To Fix Outlook Error Code 8 In A Jiffy

At times, while working on Outlook, you may suddenly get confronted by the error code 8. This error code states that the problem is with the proxy server. You have to update the security certificate to fix this issue. Many users report us this problem. This article discusses the issue in detail and helps you with a prominent solution to fix this issue. So, let’s see how to fix Outlook Error Code 8:

The Situation You Might Face

  • ‘Error 8’ crashes the program window.
  • Windows frequently crashes when the same application.
  • ‘Microsoft Office Outlook Error Code 8’ message.
  • The PC periodically ‘freezes’ for a few seconds.

Error code 8 screens up during program installation, while Microsoft Outlook is running. Keep an eye on the particular time when the error 8 message appears.

Causes Behind Error Code 8

Before going to the solution, take a look at this portion to avoid the issue in the future. Here we’ve discussed the primary reasons behind the problem:

  • The corrupt download of Microsoft Outlook Software.
  • Error in Windows Registry.
  • Malware infection on the Windows Registry.
  • Another program mistakenly deleted Outlook-related files or folders.

So, this type of error can be caused by various reasons. Below we have discussed the solutions to fix this issue.

How To Fix This Error Code 8

Here is a list of steps to fix the Error code 8. It can take some time, have patience and follow the steps thoroughly.

Repair Registry Entries

To manually repair the Windows Registry you have to do create a backup of the present Windows Registry. To create a backup follow this step.

  1. Hit on the ‘Start’ button and type in ‘Command’ in the search box.
  2. Hold Ctrl + Shift at the same time then tap ‘Enter’ and ‘Yes’ respectively.
  3. A black box appears and enter the command ‘regedit’ and hit ‘Enter’. After that select the error 8 related key and choose ‘Export’ option.
  4. Next, save it using a memorable name. Then expand it:  HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\Autodiscover.
  5. Now you have to locate ‘ExcludeLastKnownGoodUrl’ and click on it. Next, set the value to 1 and save the changes. You will also see ‘ExcludeHttpsRootDomain’ and ‘ExcludeSrvRecord’ keys, open them and set their value to 1.
  6. After that go to this way: %USERPROFILE%\appdata\local\microsoft\outlook and remove it. Then create a new user’s account for Outlook and your problem is gone.

Run Antivirus

If your problem still persists then run an antivirus to secure the PC from Malware. Malware can delete or corrupt the Outlook-related files which are the main cause of this problem.

Clean Windows Disks

To run ‘Disk cleanup’ in Windows follow the steps below:

  1. Hit the ‘Start’ button and type in ‘cmd’ in the Windows search box.
  2. Then hold Ctrl + Shift at the same time and tap on ‘Enter’. Next, a dialogue box appears and you have to type ‘cleanmgr’ and click ‘Enter’ button.
  3. The process will begin and at the end click on ‘Check the boxes’ and click ‘OK’ to clean the unnecessary.

Update Drivers

Error 8 can be related to corrupt or old Drivers. If you are using the Old version of the Outlook Drivers then you have to upgrade it to fix the problem. Here is the process:

Go to ‘Settings’ option and type in ‘Update & Security’ in the search bar. After that click on it and hit the ‘Check for updates’ option. If new updates are available, they’ll automatically be downloaded and installed.

Use Windows System Restore

  • Click on ‘Start’ and in the Windows search bar type in ‘System Restore’ and tap ‘Enter’.
  • Now enter the Administrator password (if needed) and follow the on-screen Wizard to restore The PC.

Reinstall Outlook

By Reinstalling the program you could get the answer. Let’s go:

For Windows 7/8/Vista

  • First, open ‘Program and Features’ windows by searching on the Windows search bar. Now look for ‘Microsoft Office Outlook Error Code 8-associated program’ option.
  • Click on it then tap on ‘Uninstall’ button and follow the on-screen directions to complete the process.

For Windows XP

  • Tap the Windows key + S button at the same time and then type in ‘Control Panel’ to open Control Panel. Next, click on  ‘Add or Removal Programs’ and find out Microsoft Outlook-related programs. Then click on that program and follow the on-screen command Uninstall it.  

After going through the suitable step, you have to Reinstall the Software again. You should get out of the problem.


You can also use this method to get a solution of ‘Outlook Error code 8’. To run the SFC:

Following step 1. You can easily bring the Run dialogue box then type ‘sfc/scannow’ on it and hit ‘Enter’. Then System File Checker will start its scanning process to find out the exact problem.

Install All The Important Updates

To do this step follow these steps:

Type ‘update’ into Windows search bar and hit ‘Enter’. Then click on ‘Windows Update’ option if updates are available then hit on ‘Install Updates’ button.

Remove Junk Files

This step is the final step to resolve the issue – Outlook Error 8. Clean all the junk or temporary files from the PC.

Type ‘%temp’ on the Run dialogue box and hit ‘Enter’ button. Then Delete all the files from the upcoming Folder.

Hopefully, This article will help you to fix the issue. If you need further help or you are unable to understand any steps then feel free to comment to us in the below comment section. Stay tuned for our next updates by subscribing to our Website.

Nathaniel Villa
Nathaniel Villa