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Disk or storage drive problems, Error-checking

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If Something Goes Wrong Disk or storage drive problems 173 The display mode is set to Simultaneous and the external display device does not work. Make sure the external monitor is capable of displaying at resolutions of 800 x 600 or higher. Devices that do not support this resolution will only work in Internal/External mode, and not simultaneous mode. Small bright dots appear on your TFT display when you turn on your computer. Small bright dots may appear on your screen display when you turn on your computer. Your display contains an extremely large number of thin-film transistors (TFT) and is manufactured using high-precision technology. Any small bright dots that may appear on your display are an intrinsic characteristic of the TFT manufacturing technology. Over a period of time, and depending on the usage of the computer, the brightness of the screen will deteriorate. This is also an intrinsic characteristic of the screen technology. When the computer is operated on battery power, the screen will dim and you may not be able to increase the brightness of the screen while on battery power. Disk or storage drive problems Problems with the storage drive or with an external media drive usually show up as an inability to access the drive or as sector errors. Sometimes a drive problem may cause one or more files to appear to have garbage in them. Typical problems are: You are having trouble accessing a drive, or one or more files appear to be missing. Make sure you are identifying the drive by its correct name (A: or C:). Error-checking NOTE This feature is not available for optical disc drives. Run Error-checking, which analyzes the directories and files on the storage drive and repairs any damage it finds. To run Error-checking: 1 Click Start, and then Computer. 2 Right-click the drive you want to check. 3 On the pop-up menu, click Properties. The drive's Properties box appears.

Section	Page
Satellite® L640/L650 Series User’s Guide	1
Contents	29
Introduction	36
This guide	38
Safety icons	39
Other icons used	39
Your computer’s features and specifications	40
Other documentation	40
Service options	40
Chapter 1: Getting Started	41
Selecting a place to work	41
Setting up a work environment	41
Keeping yourself comfortable	42
Precautions	42
Important information on your computer’s cooling fan	44
Setting up your computer	44
Connecting to a power source	45
Charging the main battery	47
Using the computer for the first time	48
Opening the display panel	48
Turning on the power	49
Setting up your software	49
Registering your computer with Toshiba	50
Adding optional external devices	50
Adding memory (optional)	50
Installing a memory module	51
Removing a memory module	57
Checking total memory	59
Recovering the Internal Storage Drive	59
Recovering to out-of-box state (recommended recovery method)	61
Recovering to a custom size partition	63
Recovering without changing the internal storage drive partitions	66
Creating recovery DVDs/media	68
Restoring from recovery DVDs/media	71
Erasing the Internal Storage Drive	73
Checking the internal storage drive operating status	74
Installing drivers and applications	75
Using the TouchPad™	75
Adjusting TouchPad™ settings	78
Disabling or enabling the TouchPad™	79
Using external display devices	79
Selecting video cables	80
Connecting an HDMI™-compatible television or external display device	80
Connecting an external monitor or projector	80
Directing the display output when you turn on the computer	81
Adjusting the quality of the external display	82
Using an external keyboard	82
Using a mouse	82
Connecting a printer	82
Setting up a printer	83
Turning off the computer	84
Options for turning off the computer	84
Using the Shut down command	86
Using and configuring Hibernation mode	89
Using and configuring Sleep mode	91
Closing the display panel	94
Customizing your computer’s settings	94
Caring for your computer	94
Cleaning the computer	94
Moving the computer	95
Using a computer lock	95
Chapter 2: Learning the Basics	96
Computing tips	96
Using the keyboard	97
Character keys	98
Making your keyboard emulate a full-size keyboard	98
Ctrl, Fn, and Alt keys	99
Function keys	99
Special Windows® keys	99
Overlay keys	100
Starting a program	101
Starting a program from the Start menu	101
Starting a program from Windows® Explorer	102
Starting a program using the Search programs and files field	103
Saving your work	103
Printing your work	105
Backing up your work	106
Restoring your work	106
Using the optical disc drive	107
Viewing Blu-ray Disc™ movies	107
Optical disc drive components	109
Inserting an optical disc	109
Playing an audio CD	111
Playing optical media	111
Recording optical media	111
Removing a disc with the computer on	112
Removing a disc with the computer off	112
Caring for optical discs	113
Toshiba’s online resources	113
Chapter 3: Mobile Computing	114
Toshiba’s energy-saver design	114
Running the computer on battery power	114
Battery Notice	115
Power management	116
Using additional batteries	116
Charging batteries	116
Charging the main battery	117
Charging the RTC battery	117
Monitoring main battery power	118
Determining remaining battery power	119
What to do when the main battery runs low	120
Setting battery notifications	120
Conserving battery power	121
Power Plans	122
Using a hot key to set the Power Plan	123
Using the TOSHIBA eco power plan	124
Changing the main battery	124
Removing the battery from the computer	124
Inserting a charged battery	126
Taking care of your battery	127
Safety precautions	127
Maintaining your battery	128
Disposing of used batteries	129
Traveling tips	130
Chapter 4: Exploring Your Computer’s Features	131
Exploring the desktop	131
Finding your way around the desktop	132
Setting up for communications	134
Connecting your computer to a network	135
Connecting a modem to a telephone line	136
Exploring audio features	137
Recording sounds	137
Using external speakers or headphones	138
Using the Web Camera	139
Using the Memory card reader	139
Inserting memory media	140
Removing memory media	140
Using the eSATA/USB combo port	141
Chapter 5: Utilities	142
TOSHIBA Assist	143
Connect	144
Secure	145
Protect & Fix	146
Optimize	147
TOSHIBA Application Installer	148
Setting passwords	149
Using an instant password	149
Using a supervisor password	150
Using a user password	151
Deleting a user password	152
TOSHIBA Face Recognition Utility	153
TOSHIBA PC Diagnostic Tool Utility	154
Mouse Utility	155
TOSHIBA Hardware Setup	156
TOSHIBA Zooming Utility	158
TOSHIBA Accessibility	159
TOSHIBA eco Utility™	160
TOSHIBA Service Station	161
TOSHIBA PC Health Monitor	161
Chapter 6: If Something Goes Wrong	162
Problems that are easy to fix	162
Problems when you turn on the computer	163
The Windows® operating system is not working	165
Using Startup options to fix problems	166
Internet problems	167
The Windows® operating system can help you	167
Fixing a problem with Device Manager	168
Checking device properties	168
Memory problems	169
Power and the batteries	169
Keyboard problems	171
Display problems	171
Disk or storage drive problems	173
Error-checking	173
Optical disc drive problems	174
Sound system problems	177
Printer problems	177
Modem problems	178
Wireless networking problems	178
DVD and BD operating problems	180
Develop good computing habits	181
Data and system configuration backup in the Windows® operating system	182
If you need further assistance	186
Before you contact Toshiba	186
Contacting Toshiba	186
Other Toshiba Internet Web sites	187
Toshiba’s worldwide offices	188
Appendix A: Hot Keys/TOSHIBA Cards	190
Hot Key Cards	190
Using the Hot Key Cards	191
Application Cards	192
Using the Application Cards	193
Card Case	193
Hot key functions	194
Volume Mute	194
Lock (Instant security)	195
Power plan	196
Sleep mode	197
Hibernation mode	198
Output (Display switch)	199
Display brightness	200
Disabling or enabling wireless devices	201
Disabling or enabling the TouchPad™	202
Zoom (Display resolution)	203
Keyboard hot key functions	204
Appendix B: Power Cord/Cable Connectors	205
Glossary	206