80070643 error installing Windows 7 update

Hello suzzaw and welcome to the forums

Could you follow the instructions please: Windows Update Posting Instructions

Tom

suzzaw said:

I can't find this error listed anywhere on MS Support

You haven't looked very far, then :)
The problem is that it means different things, depending on the context.

Please post the data that Tom requested.

Hi suzzaw,

Wow your system is a mess! This should fix all 421 errors in one go :)

Windows Update Package Replacement

Warning: this fix is specific to the user in this thread. No one else should follow these instructions as it may cause more harm than good. If you are after assistance, please start a thread of your own.

1. Please download the attached file, Packs.zip and save this to your Desktop.
2. Right-click on the file and select Extract All...
3. Tick the box labelled Show extracted files when complete then click Extract
4. A window will open showing two folders, Manifests and Packages
5. Open the Manifests folder and copy the files into the following folder (if there are any files)
   
   C:\Windows\Temp\CheckSur\Winsxs\Manifests
   
   
6. Open the Packages folder and copy the files into the following folder (if there are any files)
   
   C:\Windows\Temp\CheckSur\Servicing\Packages
   
   
7. Run the System Update Readiness Tool (SURT) again
8. When the SURT finishes installing, copy (Ctrl + C) and paste (Ctrl + V) the contents of the SURT log into your next post please:
   
   C:\Windows\Logs\CBS\CheckSUR.persist.log

Tom