When you try to install an update for Microsoft Office 2003 Service Pack 1 (SP1) or a later version of Office 2003, or you try to install an update for Microsoft Office, you may experience the following symptoms:

Windows Update

Windows could not search for new updates

An error occurred while checking for new updates for your computer.


Error(s) found:

Code 80070663        Windows Update encountered an unknown error.
                     Get help with this error

Most recent check for updates:    11/13/2018 at 6:53 AM
Updates were installed:           08/30/2018 at 10:20 AM.  View update history
You receive updates:              For Windows and other products from Microsoft Update

Get updates for other Microsoft products. Find out more

If you want to fix the error 80070663, comply with the following methods: Method 1: Reinstall Office updates
  1. Click the “Start” button, type “Windows Explorer” in the search box.
  2. Click the “Windows Explorer” from the pop-up “Programs” menu
  3. Navigate to “C:\Users\All Users\Microsoft\Office\data” path, find “opa12.dat” file and rename it to “opa12old.dat”.
  4. When you restart Windows Office and open one file, it will prompt you to activate Windows Office, then activate it online.
  5. Reinstall Windows Office updates and restart computer.
Method 2: Reset Windows Update components If the issue is with the Windows update components, this method will resolve the issue by repairing all the components associated with it. Click on the link below and follow the article on the same. How do I reset Windows Update Components? Method 3: Clean Boot I would suggest you to perform a clean boot and disable security software and check if you are able to install Windows Update manually. Clean boot will check if any third party application is causing the issue, as clean boot helps in eliminating software conflicts.
  1. Press Windows + R Type msconfig in the search box, and then tap or click msconfig.
  2. On the Services tab of the System Configuration dialog box, tap or click to select the Hide all Microsoft services check box, and then tap or click Disable all.
  3. On the Startup tab of the System Configuration dialog box, tap or click Open Task Manager.
  4. On the Startup tab in Task Manager, for each startup item, select the item and then click Disable.
  5. Close Task Manager.
  6. On the Startup tab of the System Configuration dialog box, tap or click OK, and then restart the computer.
Method 4: Removing an Office language pack How do you remove the language Pack? Method 5: Disable Antivirus Since all the methods are failing, I would like to ask you: – Are you using any third-party security software on your PC? If you have installed any third party security software like antivirus or firewall, I would suggest you disable them temporarily and check if it works.

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6 Comments

  • There is no such file on my computer.

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  • Thanks brod, works like a charm…

  • This totally worked, thanks from me too!

  • 100% working on windows 10 tech

  • solved! thanks