1.) Start > Run > winmsd.exe2.) Locate the Processor in the System Summary, there is 32bit if found x86 Family displayed. When 64bit or AMD64 was found, that's mean your OS is 64bit.
开始-我的电脑(按右键) 弹出一个节目 有XP系统的介绍 上面有或者下载鲁大师 可以查看