Microsoft recently released Service Pack 2 for Windows Vista.It contains all the security fixes for Windows Vista. It can be installed via windows update or by downloading standalone installer.
Windows Vista SP2 32 bit version is around 250 MB and 64 bit version is around . due to its large size, it is preferable to download it using download managers which can increase download speeds and resume interrupted downloads. Below are the direct download links for Windows Vista SP2:
The above links can be used in download accelerators with resume support. Note that Windows Vista Service Pack 1 should be installed prior to installing Service Pack 2.
