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By default, Windows Explorer opens showing the My Documents folder. To change the default setting so that all top–level drives and folders are shown, follow these steps:
1.
Click Start, point to Programs, then Accessories, then right–click Windows Explorer, and click Properties.
2.
Under Target field, which reads %SystemRoot%\explorer.exe, add to make the line read %SystemRoot%\explorer.exe /n, /e, /select, C:\
3.
Click OK.