Support for Windows Vista without any service packs installed will end on April 13, 2010. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2).
To check what service pack is installed, follow these steps:-
1) Click on the Start Button
2) Right-click on either My Computer or Computer (depending on your Windows version)
3) Click on Properties
You will need to install Service Pack 1 before you can install SP2 The links for these downloads are as follows:-
1 x 640Gb (SATA 300)
Western Digital: WDC WD6400AAKS-75A7B0
1 x 1Tb (SATA 600)
Western Digital: Caviar Black, SATA 6GB/S, 64Mb cache, 8ms
Western Digital: WDC WD1002FAEX-00Z3A0 ATA Device
PSU
Stock PSU - 375W
Case
Dell XPS 420
Cooling
Stock Fan
Mouse
Advent Optical ADE-WG01 (colour change light up)
Keyboard
Dell Bluetooth
Internet Speed
120 kb/s
Other Info
ASUS USB 3.0 5Gbps/SATA 6Gbps - PCI-Express Combo Controller Card (U3S6)
1 x 640Gb (SATA 300)
Western Digital: WDC WD6400AAKS-75A7B0
1 x 1Tb (SATA 600)
Western Digital: Caviar Black, SATA 6GB/S, 64Mb cache, 8ms
Western Digital: WDC WD1002FAEX-00Z3A0 ATA Device
PSU
Stock PSU - 375W
Case
Dell XPS 420
Cooling
Stock Fan
Mouse
Advent Optical ADE-WG01 (colour change light up)
Keyboard
Dell Bluetooth
Internet Speed
120 kb/s
Other Info
ASUS USB 3.0 5Gbps/SATA 6Gbps - PCI-Express Combo Controller Card (U3S6)
1 x 640Gb (SATA 300)
Western Digital: WDC WD6400AAKS-75A7B0
1 x 1Tb (SATA 600)
Western Digital: Caviar Black, SATA 6GB/S, 64Mb cache, 8ms
Western Digital: WDC WD1002FAEX-00Z3A0 ATA Device
PSU
Stock PSU - 375W
Case
Dell XPS 420
Cooling
Stock Fan
Mouse
Advent Optical ADE-WG01 (colour change light up)
Keyboard
Dell Bluetooth
Internet Speed
120 kb/s
Other Info
ASUS USB 3.0 5Gbps/SATA 6Gbps - PCI-Express Combo Controller Card (U3S6)