every half an hour it crashs, most of the time when i am stunting and recording, but it will do it even if i standing and exploring

Do you have any mods installed?

Hello LuDaCriZ,

Unfortunately you will experience this all of the time in SA-MP, due to the way it is coded, it is a somewhat crash-prone modification, and that cannot really be changed. I do advise straying away from using Vista, as SA-MP is not compatible with Vista and you may experience some further issues.