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Also know, is Windows Vista 32 or 64 bit?

Windows 7 or Windows Vista The operating system is displayed as follows: For a 64-bit version operating system: 64-bit Operating System appears for the System type under System. For a 32-bit version operating system: 32-bit Operating System appears for the System type under System.

Secondly, what version of Windows Vista do I have? In Vista and 7, right-click your Computer icon and choose Properties. Presto: all the information you need in one handy box. You can also click the Start button, type version, and then click Show which operating system your computer is running.

Accordingly, how do I know if I need 64 bit or 32 bit?

Press and hold the Windows Key and the Pause key. In the System window, next to System type it will list 32-bit Operating System for a 32-bit version of Windows, and 64-bit Operating System if you're running the 64-bit version.

Is it safe to still use Windows Vista?

Once an operating system enters extended support, it's still safe to use. It means that Microsoft will continue to patch any security threats but won't add any new features (as it would do during the 'mainstream support' phase).