The 8024200d error normally show when you try and update Windows Vista and install one of the service packs onto your system
. This error is still a big problem for many people and prevents you from being able to update your system. The main error that shows reads something like, "Update For Windows Vista Failed. Error Code 8024200d"
System restore is a simple yet effective application that will restore your system back to a previous state of change in your PC, preferably before you saw the error. Maybe even prior to any updates or downloads that would have been in conjunction to Windows Error Code 8024200d.
To use system restore, you need to follow these steps:
1) Click on the "Start" button
2) Select "All Programs" in the Start menu
3) Select "Accessories" in the menu
4) Select "System Tools" in Accessories
5) Select the "System Restore" application
You also then need to make sure that your Firewall and Antivirus programs are allowing Windows to contact with the Microsoft Update service (it's often the case that many protection tools will block Internet access to Microsoft for some reason). You should also use an antivirus tool to scan your PC for errors / infections. If you don't have an antivirus tool installed, there are plenty available online.
The registry is a big database which lies at the core of the Windows system. It stores all sorts of settings and vital information for your computer, and is the main reason why Windows is able to save & recall many different settings on your PC. Unfortunately, the registry is also one of the main causes of issues on the Windows system as its constantly being corrupted and damaged. This is a big problem because it causes Windows to run slower and with lots of errors, including the 8024200d error. To fix this, its recommended you use a registry cleaner to scan through the registry of your system and fix any of the damaged settings inside it.