Hi Susan,
Error code 80070002 generally occurs when some files in the update are missing, even though the update is downloaded and extracted successfully.
1. Which update are you trying to install?
Follow the steps below to check the update causing the issue:
- Click on start
- Open control panel
- Click on Windows updates
- In the left panel.click on ‘Update History’.
- Check against each update, which all failed and what is the error code associated. Also note down the KB number for the failed updates.
2. At what stage do you get the error? While downloading the update or while installing it?
3. What all troubleshooting steps have you tried till now?
Run the Fixit on the support article : http://support.microsoft.com/kb/910336
Additionally, Follow the steps provided on the link:
http://windows.microsoft.com/en-in/windows7/windows-update-error-80070002
Please let us know if the issue persists. We will be happy to assist you further.
Thanks!