Este artigo da Ajuda da Microsoft destina-se a outros sistemas operacionais, mas é provável que seja relevante: A pasta System32 é aberta ao fazer logon no Windows XP, Windows 2000 ou Windows NT 4.0
Symptom: When you log on to Microsoft Windows, a Microsoft Windows Explorer window may open that displays the contents of the System32 folder.
This behavior also occurs if there is a String value that contains only a single quote character (") as the Value data in the following Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Cause: This behavior can occur if a null, incomplete, or damaged entry exists in the registry.
Resolution: Use Registry Editor to view the following two Windows registry keys:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Verify that all the values in these keys do not contain any incorrect, incomplete, or null entries (such as "").