推荐回答(3个)
有些话说在前面:请用电脑查看,不要用手机端查看,因为效果不是很好。win10改win7需要看硬盘是什么磁盘分区表,MBR磁盘分区表就正常装,如果是GPT磁盘分区表,则需要改引导和磁盘分区表,或者是需改win7安装镜像。电脑如果出厂是win10的话,多半都是UEFI引导在GPT磁盘分区表上的。如有任何疑问请追问。
如果电脑硬盘是MBR磁盘分区表,则进行如下操作:
解决方法:利用U盘+win7原版镜像重新做系统(注意是原版镜像哦)
所需工具:容量≥4G的U盘、win7原版iso镜像、一款刻录软件
操作方法:
1,下载win7原版iso镜像,如需下载地址请追问。
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2,将U盘插入电脑。
3,用刻录软件ultraiso打开下载好的iso镜像。
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4,点击菜单栏中的“启动”选“写入硬盘镜像”。
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5,接下来在弹出的窗口直接点击“写入”按钮(注:将写入方式选择为“USB-HDD+”,如果不是这个模式,可能导致电脑无法通过U盘正常启动。)
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6,弹出“所有数据将丢失”提示框,点击“是”。
7,等待片刻,安装系统的镜像文件数据正在写入到U盘里。
8,刻录完成,准备开始重装系统。
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9,重启计算机。
10,开机狂按F11或F12进入BIOS设置。
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11,利用左右键调至boot菜单,确保UEFI boot为Disable(或确保boot mode为legacy BIOS)。
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12,设置Boot Priority Order顺序,利用F5/F6键将USB HDD设置为第一个。
13,保存并重启。
14、进入win7预装pe。
15,点击“现在安装”。
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16,设置“要安装的语言”、“时间和货币格式”、“键盘和输入方法”(默认即可),点击下一步进行安装。
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17,根据提示完成接下来的安装。(出厂win10的是GPT磁盘分区表,请往下看,下面还有很多内容)
18,安装完成后将自动重启。
19,安装彻底完成,进入win7系统。
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20,到主板官网下载驱动。
注意事项:电脑驱动要安装最适合的,最新的驱动不一定适合硬件,所以不要通过某精灵和某人生下载驱动,一定要去主板官网下载驱动,尤其是笔记本电脑。
如果电脑硬盘是GPT磁盘分区表,前15步同上,以下从第16步开始:
16,设置“要安装的语言”、“时间和货币格式”、“键盘和输入方法”(默认即可),点击下一步进行安装。
17,接受许可,点击下一步进行安装。
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18,选择自定义。
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19,进入选择磁盘处,按shift+F10进入cmd,输入diskpart,按回车。
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20,依次输入以下语句(每条语句的含义在图中已标出)(最后五行可不执行直接关闭这个黑色的窗口)。
list disk
select disk 0
clean
convert mbr
create partition primary size =30720
active
format quick
list partition
create partition extended
create partition logical size =5120
exit
exit
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21,点击刷新,就可以看到分好的分区了。
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22,选择分区1,点击下一步进行安装。
23,安装完等待自动重启。
24,重启之后就彻底完成安装了,进入win7系统。
25,到主板官网下载驱动,以确保电脑硬件全部正常使用。
用win7系统盘(光盘或者U盘),启动计算机,进入BIOS,设置光盘或者U盘启动,进入安装win7界面,删除(或者格式化C盘),按提示继续(中文界面)直到完成,OK!降回win7了!
首先查查驱动有没有win7的(要原厂的),有就装,没有的话就不行了。
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