win7 system can not be stored in the C drive how

1, to format the C drive, then you can choose ntfs hard disk format;

2, or open the win7 system command prompt (Microsoft logo key + R input cmd);

3, enter convert c: /FS: NTFS;

4, should Will prompt you that you are using can not be converted, need to restart, let you enter y (yes) or n (no);

5, enter y and then restart;

6, then you are watching The c drive's property c drive becomes ntfs format, so you can install windows7;

7, or install a new installation, and then select the target partition when there is a partition list at the bottom right “ drive option & rdquo; button, click to delete the C drive and then create a new C drive can be installed.