Dell Studio 1558 (Early 2010) - Manual (Page 123)

Managing Applications (Programs)
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3 If your network administrator has organized the available programs into
categories, you may need to select a different option in Category to see the
program you want to add.
4 Select an application from the list, and click Add.
5 Follow the instructions on your screen.
Removing Applications From Your Computer
Windows Vista
1 Click Start → Control Panel→ Programs→ Programs and Features.
2 Select the application you want to remove, and click Uninstall.
Type the administrator password or provide confirmation, if prompted.
Windows XP
1 Click Start → Control Panel→ Add or Remove Programs.
2 Click Remove a program, and select the application you want to remove.
3 Click Remove.