Dell Inspiron 545 MT User Manual page 46

Typically, to access the Device Manager:
HINT:
Windows Vista
Click Start→ Control Panel→ System and Maintenance→
Administrative Tools→ Computer Management.
Windows XP
Click Start→ Control Panel→ Performance and Maintenance→
Administrative Tools→ Computer Management.
OR
Right-click My Computer and select Properties. Then click Device
Manager.
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Microsoft Windows Desktop