Dell Dimension 4500C (Japan Only) - Manual (Page 73)

Advanced Troubleshooting 73
15 When the Welcome to Microsoft screen appears, click the green arrow
icon at the bottom of the screen to continue. Follow the directions on
the screen to finish.
16 Remove the CD from the drive.
17 Reinstall the appropriate drivers (see page 67).
18 Reinstall your virus protection software.
19 Reinstall your other software programs.
See the documentation supplied with the software for instructions.