...in Windows 2000 and Windows XP
You need to be able to find the system root directory in order to find the drivers that are actually in use, to find the system log files, and to find the debug crash dump files.
To locate the system root directory:
- Press and hold the Windows key
, then press the letter 'R'.
(You can also press start->run...)
- Enter the word "cmd" in the program prompt, as shown, and press OK.

- A command window should appear. Enter the command "set systemroot" at the prompt, and press enter, as shown below. The system will display the system root.
Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:\>set systemroot
SystemRoot=C:\WINNT
C:\>