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Performance and lockup problems, Insufﬁcient free hard disk drive space

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Actions: • Verify that all option hardware and cable connections are secure. • If the option comes with its own test instructions, use those instructions to test the option. • If the failing option is a SCSI option, verify that: - The cables for all external SCSI options are connected correctly. - The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. - All external SCSI options are turned on. External SCSI options must be turned on before the computer is turned on. For more information, see your SCSI documentation. • Verify that the option and any required device drivers are installed correctly. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 69 for instructions). If you need technical assistance, see Chapter 11 "Getting information, help, and service" on page 71. Performance and lockup problems Poor performance and lockup problems can be a result of any of the following: • "Insufficient free hard disk drive space" on page 66 • "Excessive number of fragmented files" on page 67 Make a selection from the above list to find out more about the corrective actions you can take. Insufficient free hard disk drive space Symptom: Insufficient free hard disk drive space The Windows operating system will slow down and might produce errors if the hard disk drive gets too full. To check the amount of free space on the Windows 7 operating system, do the following: 1. Click Start ➙ Computer. 2. Right-click your C drive entry and then click Properties. The amount of free disk space is displayed. Actions to free up disk space: • On the Windows 7 operating system, do one or all of the following: - 1. Click Start ➙ Computer. 2. Right-click your C drive entry and then click Properties. 3. Click Disk Cleanup. 4. A list of unnecessary file categories is displayed. Select each file category you want to delete, and then click OK. - 1. Click Start ➙ Control Panel. 2. Click Programs. 3. Click Turn Windows features on or off. 4. A list of optional Windows components is displayed. Follow the instructions on the screen. - 1. Click Start ➙ Computer. 66 ThinkCentre User Guide

Section	Page
Important safety information	7
Service and upgrades	7
Static electricity prevention	7
Power cords and power adapters	8
Extension cords and related devices	8
Plugs and outlets	9
External devices	9
Heat and product ventilation	9
Operating environment	10
Modem safety information	10
Laser compliance statement	11
Power supply statement	11
Cleaning and maintenance	11
Chapter 1. Product overview	13
Features	13
Specifications	16
Software overview	16
Software provided by Lenovo	16
Adobe Reader	19
Antivirus software	19
Locations	19
Locating connectors, controls, and indicators on the front of yo	20
Locating connectors on the rear of your computer	21
Adjusting the computer stand	22
Machine type and model label	23
Chapter 2. Using your computer	25
Frequently asked questions	25
Using the keyboard	25
Using Windows shortcut keys	25
Using the blue ThinkVantage button	26
Using a fingerprint reader	26
Using the wheel mouse	26
Adjusting audio	26
About your computer audio	27
Setting the volume from the desktop	27
Setting the volume from Control Panel	27
Using CDs and DVDs	27
Handling and storing CD and DVD media	28
Playing a CD or DVD	28
Recording a CD or DVD	28
Using the single-touch and multi-touch feature	29
Color temperature adjustment	29
Selecting a pre-defined color temperature	30
Switching to RGB adjustment	30
Making brightness adjustment	30
Chapter 3. You and your computer	33
Accessibility and comfort	33
Arranging your workspace	33
Comfort	33
Glare and lighting	34
Air circulation	34
Electrical outlets and cable lengths	34
Register your computer with Lenovo	35
Moving your computer to another country or region	35
Voltage-selection switch	35
Replacement power cords	36
Chapter 4. Security	37
Security features	37
Attaching an integrated cable lock	38
Using passwords	38
BIOS passwords	38
Windows passwords	39
Configuring the fingerprint reader	39
Using and understanding firewalls	39
Protecting data against viruses	39
Chapter 5. Installing or replacing hardware	41
Handling static-sensitive devices	41
Installing or replacing hardware	41
Installing external options	41
Installing a computer wall mount	42
Removing and reinstalling the monitor stand	42
Replacing the USB keyboard or mouse	43
Replacing the wireless keyboard	43
Replacing the wireless mouse	44
Replacing the PS/2 keyboard or mouse	46
Obtaining device drivers	46
Chapter 6. Recovery information	47
Creating and using recovery media	47
Creating recovery media	47
Using recovery media	48
Performing backup and recovery operations	48
Performing a backup operation	48
Performing a recovery operation	49
Using the Rescue and Recovery workspace	49
Creating and using a rescue medium	50
Creating a rescue medium	50
Using a rescue medium	50
Reinstalling preinstalled applications and device drivers	51
Reinstalling software programs	52
Reinstalling device drivers	52
Solving recovery problems	52
Chapter 7. Using the Setup Utility program	55
Starting the Setup Utility program	55
Viewing and changing settings	55
Using passwords	55
Password considerations	56
Power-On Password	56
Administrator Password	56
Hard Disk Password	56
Setting, changing, and deleting a password	56
Enabling or disabling a device	57
Selecting a startup device	57
Selecting a temporary startup device	57
Selecting or changing the startup device sequence	57
Exiting from the Setup Utility program	58
Chapter 8. Updating system programs	59
Using system programs	59
Updating (flashing) the BIOS from a disc	59
Updating (flashing) the BIOS from your operating system	60
Chapter 9. Preventing problems	61
Keeping your computer current	61
Getting the latest device drivers for your computer	61
Updating your operating system	61
Using System Update	61
Cleaning and maintenance	62
Basics	62
Cleaning your computer	63
Good maintenance practices	64
Moving your computer	64
Chapter 10. Troubleshooting and diagnostics	65
Basic troubleshooting	65
Troubleshooting procedure	66
Troubleshooting	66
Audio problems	67
CD problems	68
DVD problems	69
Intermittent problems	71
Keyboard, mouse, or pointing device problems	71
Monitor problems	73
Networking problems	74
Option problems	77
Performance and lockup problems	78
Printer problems	79
Serial port problems	79
Software problems	80
USB problems	81
Lenovo Solution Center	81
Chapter 11. Getting information, help, and service	83
Information resources	83
Lenovo ThinkVantage Tools	83
Lenovo Welcome	83
Help and Support	83
Safety and Warranty	83
Lenovo Web site (http://www.lenovo.com)	83
Lenovo Support Web site	83
Help and service	84
Using the documentation and diagnostic programs	84
Calling for service	84
Using other services	85
Purchasing additional services	85
Appendix A. Notices	87
Trademarks	88
Appendix B. Regulatory information	89
Export classification notice	89
Television output notice	89
Electronic emissions notices	89
Federal Communications Commission Declaration of Conformity	89
Additional regulatory information	91
Appendix C. WEEE and recycling information	93
Important WEEE Information	93
Recycling information	93
Recycling information for Brazil	94
Battery recycling information for Taiwan	94
Battery recycling information for the European Union	95
Appendix D. Restriction of Hazardous Substances Directive (RoHS)	97
China RoHS	97
Turkish RoHS	97
Ukraine RoHS	97
India RoHS	98
Appendix E. ENERGY STAR model information	99
Appendix F. Ek Bilgiler	101
Appendix G. Servis istasyonlari	103

Match case Limit results 1 per page

Actions:

•

Verify that all option hardware and cable connections are secure.

•

If the option comes with its own test instructions, use those instructions to test the option.

•

If the failing option is a SCSI option, verify that:

–

The cables for all external SCSI options are connected correctly.

–

The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly.

–

All external SCSI options are turned on. External SCSI options must be turned on before the computer

is turned on. For more information, see your SCSI documentation.

•

Verify that the option and any required device drivers are installed correctly.

If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center”

on page 69 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help,

and service” on page 71.

Performance and lockup problems

Poor performance and lockup problems can be a result of any of the following:

•

“Insufﬁcient free hard disk drive space” on page 66

•

“Excessive number of fragmented ﬁles” on page 67

Make a selection from the above list to ﬁnd out more about the corrective actions you can take.

Insufﬁcient free hard disk drive space

Symptom: Insufﬁcient free hard disk drive space

The Windows operating system will slow down and might produce errors if the hard disk drive gets too full.

To check the amount of free space on the Windows 7 operating system, do the following:

1. Click

Start

➙

Computer

2. Right-click your C drive entry and then click

Properties

. The amount of free disk space is displayed.

Actions to free up disk space:

•

On the Windows 7 operating system, do one or all of the following:

–

1. Click

Start

➙

Computer

2. Right-click your C drive entry and then click

Properties

3. Click

Disk Cleanup

4. A list of unnecessary ﬁle categories is displayed. Select each ﬁle category you want to delete, and

then click

–

1. Click

Start

➙

Control Panel

2. Click

Programs

3. Click

Turn Windows features on or off

4. A list of optional Windows components is displayed. Follow the instructions on the screen.

–

1. Click

Start

➙

Computer

ThinkCentre User Guide