你所不知道的windows命令，一切都在ms的掌握中。

WMIC ==>Windows Management Instrumentation Command-line
0.wmic /?
1.wmic os ==>获取os的更多信息，最近登录时间，os安装时间，序列号等
2.wmic bios ==>bios information
3.wmic csproduct==>Computer system product information from SMBIOS.
4.wmic memorychip==>Memory chip information