Before you install the Vista SP2 upgrade, perform the following checks.
Make sure that:
- Vista SP1 is installed before you try to install Vista SP2. To find out more about SP1, check out Microsoft’s site.
- There is a constant power supply so the computer does not shut off during the upgrade process.
- There is enough hard drive space. Vista SP2 can use up to 2 GB of space.
- All work files are backed up before the upgrade
- Antivirus software is disabled and all programs are closed before beginning the upgrade.
Note: Once the upgrade begins you will not be able to use your computer. It may take up to an hour or two to complete.