Lenovo B550 User Manual page 32

Chapter 5. Troubleshooting
Sound problems
No sound can be heard from the
speaker even when the volume is
turned up.
Battery problems
Your computer shuts down before
the battery status indicator shows
empty.
-or-
Your computer operates after the
battery status indicator shows
empty.
The operating time for a fully
charged battery is short.
The computer does not operate with
a fully charged battery.
The battery does not charge.
A hard disk drive problem
The hard disk drive does not work.
A startup problem
®
The Microsoft Windows operating
system does not start.
OneKey Rescue system problems
Backup cannot be made.
Fail to restore system partition to
factory default.
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Make sure that:
•
- The Mute function is off.
- The headphone jack is not used.
- Speakers are selected as the playback device.
• Discharge and recharge the battery.
• For details, see "Handling the battery" in Chapter 2.
• The surge protector in the battery might be active. Turn off the
computer for one minute to reset the protector; then turn on the
computer again.
• For details, see "Handling the battery" in Chapter 2.
In the Boot menu in BIOS Setup Utility, make sure that the hard
•
disk drive is included in the Boot priority order correctly.
Use the OneKey Rescue system to help solve or identify your
•
problem. For details about OneKey Rescue system, see "Chapter 4.
OneKey Rescue system" on page 19.
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.