The standalone update installer the 32-bit version of Vista is available here. (434 MB)
For those of you with the 64-bit version of Vista, get your update installer here. (726 MB)
Remember to backup your essential stuffs before attempting an upgrade. To be on the safe side, use Windows Update to download the upgrade installation pack and just install the upgrade within windows vista.
What’s new in Windows Vista SP1?
Basically, Windows Vista SP1 adds hardware support, improve reliability, performance, power consumption, security, supports new standards, etc. Here are some notable changes:
» Adds support for Direct3D 10.1
» Adds support for exFAT
» Adds support for creating DVD disc that boots on PC
» Addresses many of the most common causes of crashes and hangs in Windows Vista
» Improves reliability by preventing data-lose while ejecting NTFS-formatted removable-media.
» Improves wireless ad-hoc connection success rate.
» Addresses the problem of the Video chipset not allowing the system to stay asleep.
» Improves the speed of adding and extracting files to and from a compressed (zipped) folder.
» Improves speed of moving and copying folders and files.
» Improves the time to read large images by ~50%
» Improves the effectiveness of a Windows ReadyBoost device in reducing the time to resume from standby and hibernate.
» Improves overall media performance by reducing many glitches.
» Adds full support for the latest IEEE draft of 802.11n wireless networking.
» Enhances Windows Firewall and IPsec to use the new cryptographic algorithms that are Suite B compliant.
» Updated drivers are delivered primarily via Windows Update and directly from hardware vendors, not as part of a service pack.
» Allows users and administrators to control which volumes the disk defragmenter runs on.
» Enables support for hotpatching, a reboot-reduction servicing technology designed to maximize uptime.
» Improves overall install time for updates by optimizing the query for installed OS updates.
» With SP1, Windows Vista will report the amount of system memory installed rather than report the amount of system memory available to the OS.
» Upon scanning a photo with the Vista scanning experience, SP1 will open Explorer rather than opening Windows Photo Gallery.
» Users are now required to enter a password hint during the initial setup of Windows Vista SP1.
The full list of changes in Windows Service Pack 1 can be obtained from Windows Vista TechCenter.