Are you affected by the problem with Windows Vista Update Error? This happens when you try to update Vista and instead of working as expected, you receive an 8000FFFF error. So, what is the problem with Vista update error and what exactly does 8000FFFF mean? Read on to find out more about the cause of this annoying little mistake and how to solve it.
The Vista update error issue has been widely reported by Vista users. Its more often found on computers with 4 GB or more RAM, but can also occur on other configurations. There are two main causes of this problem, the damaged software distribution folder and the damaged registry entries
In order to solve the problem, here are some troubleshooting tips and suggestions that worked for others:  Solution # 1) Rename the folder "SoftwareDistribution"
The first step is to disable your automatic updates. You can do this by navigating here:
Start -> Control Panel -> Performance and Maintenance -> Administrator Tools -> Services -> Automatic Updates Service, then select the "General" tab. Click to stop automatic updates.
Next, you will need to access your "C:" drive and search for a folder called SoftwareDistribution. Rename this folder to something else.
Finally, you can return to the screen from the first step and re-enable automatic updates. This can sometimes clear this error and allow updates to continue.
If this fails, the problem is probably related to your Windows registry …
Solution # 2) Cleaning the registry and repairing corrupted elements
For this solution, you will need download and install a Vista compatible registry cleaner. for your convenience, a link is available at the bottom of this article to download free RegCure (my favorite).
After installing your registry cleaner, you will have to let it look for errors. There can be hundreds, if not thousands, of these errors on your PC, so do not be shocked when it reports a correct number.
Then, grant the software permission to automatically repair these errors. There is an easy step-by-step assistant to follow. Once you have set it up, take a short break and leave it a few minutes to clean and repair your registry.
Once completed, you can restart your computer and check if Vista 8000FFFF update error has been removed. If it still does not work, there is one more thing you can try.
Solution # 3) Re-execute failed updates
the problem. You can do this by opening:
Control Panel -> Windows Update -> Show Update History
If updates fail, you can try to download them files and install them manually.