why I can not install a service pack on my laptop with windows vista

I can't try to install the service pack on my lap top my system is windows vista, there is someone who can tell me what can be the problem?

Hello

Here's how could do if you encounter any problems when obtaining the SPs via Windows Update.

Click Start > right click on computer > left click on properties > see if you have Vista 32 bit or Vista 64-bit installed.

It will also tell you which SP you have installed.

Then, choose the download of 'bit' OK to use to install Service Packs, installation of SP1 first if it is not already installed.

Vista SP1 32-bit (x 86): http://www.microsoft.com/en-us/download/details.aspx?id=30

Vista SP1 64-bit: http://www.microsoft.com/en-us/download/details.aspx?id=21299

Vista SP2 32-bit (x 86): http://www.microsoft.com/en-us/download/details.aspx?id=16468

Vista SP2 64-bit: http://www.microsoft.com/en-us/download/details.aspx?id=17669

This Information Microsoft can help you resolve problems that you encounter during the installation of Service Packs for Vista.

http://support.Microsoft.com/kb/947366

See you soon.

Tags: Windows

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