操作系统无法更改版本,需要重新安装所需求的操作系统。
安装步骤如下:
1、将windows7原版操作系统解压到D盘(除C盘外的其他盘);
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/241f95cad1c8a786f37e0de56909c93d71cf5080?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、点击进入解压的windows7操作系统文件夹,选择setup.exe进行下一步;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/c2fdfc039245d6889aaff54faac27d1ed31b24af?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、点击setup.exe后会打开安装向导,点击“现在安装”;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bba1cd11728b4710fe7bba27cdcec3fdfd032380?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、等待安装程序启动;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3ac79f3df8dcd100f9c8bfca7c8b4710b8122f80?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、点击“不获取最新安装更新”;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bd315c6034a85edf90ceb9c847540923dc54759e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、点击“我接受许可条款”,然后进行下一步;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/ca1349540923dd5474dee083df09b3de9d8248af?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、点击 “自定义(高级)”;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/241f95cad1c8a786f3870de56909c93d71cf50af?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
8、选择“C盘”,然后点击“下一步”;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4bed2e738bd4b31c1516d35089d6277f9e2ff837?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
9、等待系统文件释放完成;
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f703738da97739123b0cc28af6198618367ae237?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
10、系统安装完成。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/dc54564e9258d109964eee59df58ccbf6d814daf?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)