first, the meaning of Sid
The SID is all called the security identity, which is the network safety label. It is used to uniquely identify information such as computer accounts, user groups, and user accounts. He is determined by the computer name, current time, and the current user-state thread's CPU time-consuming sum of three parameters to ensure its uniqueness. Many system software uses this designation to uniquely identify a user.
Second, view native SID
1) CMD Enter the command line and enter who am I/all. To view SID information for the currently logged on user
2) Regedit enters the registry and enters HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows Ntcurrentversion ProfileList, whose left side is Sid, The right ProfileImagePath can see the user name for that SID.
Third, modify the SID
Cloning a system on the virtual or using ghost mirroring to install the system will encounter the same SID problem. In this case:
If Win2003 or Win XP system, you can extract the Syspre.exe and Factory.exe two files in Deploy.cab under the SupportTools file of the installation package. Then run Syspre.exe and select Reseal.
If the Win7 system, you can run Syspre.exe in the path c:windowssystem32sysprep. Select Reseal.