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What should I do if the message "Operating system not found" appears when my computer
starts, and why won't Windows start?
Make sure the computer does not have a "non-bootable" floppy disk in the floppy disk drive (if applicable).
If a non-bootable floppy disk is in the drive:
1
Remove the floppy disk.
2
Restart the computer and confirm that the Microsoft Windows operating system starts properly.
If the Windows operating system still does not start, follow these steps to initialize the BIOS:
1
If there is a disk in the floppy disk drive, remove it.
2
Turn off the computer.
3
Remove any peripheral devices connected to the computer.
4
Restart the computer.
5
Press the F2 key when the VAIO logo appears.
The BIOS setup screen appears.
,
6
Press the
key to select the Exit menu.
m
7
Press the
key to select Get Default Values.
The message Load factory default values appears.
8
Press the Enter key.
The Load Optimal Defaults window appears.
9
Select OK, and press the Enter key.
10 Select Exit (Save Changes), and press the Enter key.
The Save configuration changes and exit setup window appears.
11 Select OK, and press the Enter key. The computer restarts.
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Troubleshooting
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