1. Log into another windows.
For example, current os is partition7-G, another windows os is partition3-C.
Log into partition3-C.

2. Go to partition-G--> Windows --> System32
Get permission for current user. And exchangethe name of cmd & magnify.


①Change current user's(Administrator) permission from "Read & execute" to "Fullcontrol.
Steps are as below:

②Exchange cmd and Magnify under C:\Windows\System32\

3. Reboot os, go totarget os.
①At the login screen, select magnify.


②Input cmmand: net user Administrator xxxxx
Ifsuccess, you may close this window and login with the new password.


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好吧 我转发下 哈哈