Windows Vista can be update automatically. In this when there is an update released by Microsoft, your system will automatically download the updates and install it. If you have not enabled auto update, then you will have to update manually.
You can check your update History by going to Control Panel-> Windows Update
To View your update history, you can click on the “View update history”. You will get the information related to the updates done in the past and this is helpful when you find any problem due to these updates like some conflicts in drivers. In this case, either you can go for system restore or uninstall the updates
You can remove the installed updates by clicking on the link “Installed Updates”
