Lenovo IdeaPad U450 User Manual page 65

OneKey Rescue System problems
Backup cannot be made.
Fail to restore system
partition to factory default.
Other problems
The computer does not
respond.
The computer does not
start from the desired
device.
You are not currently using a Windows operating
•
system.
• There is not enough space to store the backed up
data. You will need to free more hard disk space on
your system partition (C drive).
The system partition, such as the partition size or the
•
drive capacity of C, has been modified.
• To turn off your computer, press and hold the power
button for 4 seconds or more. If the computer still does
not respond, remove the AC adapter and the battery.
• Your computer might lock when it enters sleep mode
during a communication operation.
• See the Boot menu of BIOS Setup Utility. Make sure
that Boot priority order in BIOS Setup Utility is set
so that the computer starts from the device you
want.
• Also make sure that the device from which the
computer starts is enabled. In the Boot menu in
BIOS Setup Utility, make sure that the device is
included in the Boot priority order list.
• Press F12 when the Lenovo logo appears on the
screen while the computer is starting up to select the
device you want the computer starts from.
Chapter 5. Troubleshooting
51