关于联想 B490 改装系统的详细操作

关于联想 B490 改装系统的详细操作 新拿到一台联想 B490 ，自带win8 系统，可开机后慢的跟蜗牛一样，而且还卡的要命，本机配置 I3 3120 cpu \2G内存\500G硬盘，可启动后发现联想自带的一些程序已经把内存占满了。难怪如此之卡.........。 因此本人决定重新安装win7 系统，可意外出现了，不管用什么盘启动电脑，都无法引导......。后经过与联想交涉，终于找到一种方法，现与大家分享。 联想笔记本预装的Windows 8系统，使用的是GUID格式分区表，所以在将系统改装为Windows 7及以下的系统时，需要将本机的硬盘分区表转化成MBR分区表，而Windows 7及以下以统系用的是MBR分区表，两者互不兼容。只能从新分区(或者是利用DiskGenius 的最新版进行分区转换)......。 而对于联想的这一款机型，采用了UEFI Secure BOOt 保护，所以对于所有的启动光盘(除WIN8的安装盘)、PE 启动U盘，无一种能用，因此首先我们来关闭 UEFI Secure BOOt 保护: 1、启动按F2 进入BIOS ，光标移动到 “Restart”上，做如下修改:Enabled--->Disabled; 2、然后按 F9 ---> Yes(这一步是必须的); 3、再回到倒数第二项“Startup”上，做如下修改:Both--->Legacy only ，改完后个保存退出。此时就可以使用以前的光盘或者是U盘来安装系统了; coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, thereand cultural heritage, highlighting the cultural taste and shape characteristics of the city in Yibin. According to forecasts, vision 2050 population will reach 2.1 million people in the center of Yibin city, urban land is around 210km2. Figure 2.6-1 2050 figure 2.7 land use planning in the Center City, Yibin city development requires the development of bus rapid transit construction and socio-economic development trends, Yibin city coordination, supporting urban space layout and infrastructure networks, transport organized, internal and external traffic hub smoothly linking, realizing sustainable development of Yibin city integrated transportation system. Concrete can be summarized as, accessible, efficient, intensive and sustainable. Accessibility: Central built-up area road network density of about 7.0km/km2; bus line density of 3-4 km/km2, bus transfer 4、安装系统前一定要注意备份重要文件; 5、进入PE，打开PE自带的diskgenius工具，选择“硬盘”——“转换分区表类型为MBR格式”转换完成。注意此时如果你的主分区多于4个也是不可以转的，要先把多余的删除了或者是合并了。 6、转换完成后，就可以象以前以样操作了，在此就不多说了.........。 但要注意以下问题: 安装系统时进入pe蓝屏，或者是无法显示硬盘 请您下载 4.6版的“大白菜优盘一键制作工具”制作好优盘后选择超高兼容模式进入pe就不会蓝屏了～当然如果一定要用老版的，那么就再进入Bios ，对硬盘模式做如下改动:AHCI--->Compatibility ，保存后退出就可以了。 coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, thereand cultural heritage, highlighting the cultural taste and shape characteristics of the city in Yibin. According to forecasts, vision 2050 population will reach 2.1 million people in the center of Yibin city, urban land is around 210km2. Figure 2.6-1 2050 figure 2.7 land use planning in the Center City, Yibin city development requires the development of bus rapid transit construction and socio-economic development trends, Yibin city coordination, supporting urban space layout and infrastructure networks, transport organized, internal and external traffic hub smoothly linking, realizing sustainable development of Yibin city integrated transportation system. Concrete can be summarized as, accessible, efficient, intensive and sustainable. Accessibility: Central built-up area road network density of about 7.0km/km2; bus line density of 3-4 km/km2, bus transfer 另外在补充一点，当电脑关机后，按下联想的恢复键无反应，此时可以这样设置: 先启动WIN8 ，按“WIN” 键，进入桌面方式，点击右下角的电量标志，选择“更多 电源选项”，在弹出窗口的左边找到“选择电源按钮的功能”一项并点击，然后在新窗口上 面找到“更改当前不可用的设置”项并点击，然后把“关机设置”下面第一项“启用快速启 动(推荐)”前的勾取消，点击下方“保存修改”，这时在重启就可以进入了。 coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, thereand cultural heritage, highlighting the cultural taste and shape characteristics of the city in Yibin. According to forecasts, vision 2050 population will reach 2.1 million people in the center of Yibin city, urban land is around 210km2. Figure 2.6-1 2050 figure 2.7 land use planning in the Center City, Yibin city development requires the development of bus rapid transit construction and socio-economic development trends, Yibin city coordination, supporting urban space layout and infrastructure networks, transport organized, internal and external traffic hub smoothly linking, realizing sustainable development of Yibin city integrated transportation system. Concrete can be summarized as, accessible, efficient, intensive and sustainable. Accessibility: Central built-up area road network density of about 7.0km/km2; bus line density of 3-4 km/km2, bus transfer