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How to Resolve Outlook An Unknown Error Occurred Error Code (0x800cce05)

The error 0x800cce05 is associated with Outlook. This error states ( Send Test email message: An unknown error occurred, error code: 0x800cce05 ) A majority of people are facing this types problem with sending and receiving emails using Outlook.

( Method 1 to fix outlook An unknown error occurred, error code: 0x800cce05 using cmd )

 Open Command Prompt as Administrator.

Click on Start Menu > Type cmd in search box > right click on Cmd and select Run as Administrator.

An Unknown Error Occurred Error Code (0x800cce05)

Now type  sfc /scannow command and press enter.

An Unknown Error Occurred Error Code (0x800cce05)

This command will begin a check process will take couple of minutes to finish.

Within verification process it scans and finds several corrupt files and repairs them. After completing the process take a restart of your Computer and start sending email using Outlook without getting unknown error code 0x800cce05.

 (Method 2 Repair your Outlook PST to fix this error 0x800cce05.)

  1. Open My Computer >Go to Local Disk (C) and open the path depends your Microsoft office version all micorsoft office scanpst tool path is showed down bellow.
How to Resolve Outlook An Unknown Error Occurred Error Code (0x800cce05)

Microsoft office 2007 SCANPST.EXE tool path

Office 2007 32 Bit Path C:\Program Files (x86)\Microsoft Office\Office12

Office 2007 64 Bit Path C:\Program Files\Microsoft Office\Office12

Microsoft office 2010 SCANPST.EXE tool path

Office 2010 32 bit C:\Program Files (x86)\Microsoft Office\Office14

Office 2010 64 bit C:\Program Files\Microsoft Office\Office14

Microsoft office 2013 SCANPST.EXE tool path

Office 2013 32 bit C:\Program Files (x86)\Microsoft Office\Office15

Office 2013 64 bit C:\Program Files\Microsoft Office\Office15

Microsoft office 2016 SCANPST.EXE tool path

Office 2016 32 bit C:\Program Files (x86)\Microsoft Office\root\office16

Office 2016 64 bit C:\Program Files\Microsoft Office\root\office16

Outlook scanpst tool

Close Outlook and open the SCANPST tool and click on browse your pst file and click on Start

its take sometime to depends your Pst Size

Outlook pst repairing


Don’t open outlook during this prosess if you open outlook during this prossess mybe it is possible to corrupt your pst.

After Completing 8 phase, you showed the repair button then Click on repair button

outlook pst repair

after clicking repair button your Computer is freezing don’t panic its take sometime to normal don’t do any thing on your computer

if you show this massage repair complete

pst repair complete

then you open outlook and check outlook error 0x800cce05 resolve or not.

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