What is difference between %Windir% and %Systemroot% in Windows Path Location?
Both of them show "Windows" folder location.
Windows 7 Path – Difference Between %WinDir% and %SystemRoot%
pathwindows 7
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Best Answer
To expand upon Mr. Dave’s answer,
%SystemRoot%is a built-in variable (along with a small handful of others like%SystemDrive%). That is, it is not actually defined in the environment variable store atHKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environmentin the registry.On the other hand,
%windir%is a regular variable and is defined in the variable store as%SystemRoot%. (There is no “real variable” counterpart to%SystemDrive%.)Which to use doesn’t really matter, but you may run into problems with variable expansion in batch-files, in which case you could try the other one. (I don’t recall having problems with this specifically, but it’s worth keeping in mind.)
In addition,
%SystemRoot%(and%SystemDrive%) are set during the installation process (when you choose the destination drive) and is thus available from the earliest point when Windows is being installed whereas%windir%is set at a later point during the install, so if you are creating some sort of custom installation (e.g., OEM, PE, etc.), you will want to use%SystemRoot%.