Out of the box you may encounter an issue updating Vista to Service Pack 2 via Windows Update. All required updates can be downloaded yet Windows Update may fail to present SP2 for download. The cause of this issue remains unknown.
To fix this and update to SP2 manually:
1. Download the Five-Language stand alone 64-bit installer from Microsoft. If you need the All Language stand alone installer, grab it HERE.
2. Run the installer.
3. Once installed, from a command prompt (or via the Run Command in the Start Menu) type Compcln.exe. This will remove all left over temp files from the SP install. Be aware you wont be able to uninstall the SP once this step is performed, but who cares about that? ;)
An alternative to the stand alone installer is to do a clean install. Entirely up to you.
