Lenovo B450 Notebook - Manual (Page 54)

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Chapter 5. Troubleshooting
A startup problem
The Microsoft
®
Windows
operating system does not
start.
• Use the OneKey Rescue System to help solve or
identify your problem. For details on the OneKey
Rescue System, see “Chapter 4. OneKey Rescue
System” on page 28.
OneKey Rescue System problems
Backup cannot be made. • 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).
Fail to restore system
partition to factory default. • The system partition, such as the partition size or the
drive capacity of C, has been modified.
Other problems
The computer does not
respond. • 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. Disable the
sleep timer when you are working on the network.