User Manual
User Manual
User Manual
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– All external SCSI options are turned on. External SCSI options must be turned on before the computer<br />
is turned on. For more information, see your SCSI documentation.<br />
• Verify that the option and any required device drivers are installed correctly.<br />
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical<br />
assistance, see Chapter 11 “Getting information, help, and service” on page 75.<br />
Performance and lockup problems<br />
Poor performance and lockup problems can be a result of any of the following:<br />
• “Insufficient free hard disk drive space” on page 70<br />
• “Excessive number of fragmented files” on page 71<br />
Make a selection from the above list to find out more about the corrective actions you can take.<br />
Insufficient free hard disk drive space<br />
Symptom: Insufficient free hard disk drive space<br />
The Windows operating system will slow down and might produce errors if the hard disk drive gets too full.<br />
To check the amount of free space on the Windows 7 operating system, do the following:<br />
1. Click Start ➙ Computer.<br />
2. Right-click your C drive entry and then click Properties. The amount of free disk space is displayed.<br />
To check the amount of free space on the Windows 8 operating system, do the following:<br />
1. Open the Windows Explorer and click Computer.<br />
2. Right-click your C drive entry and then click Properties. The amount of free disk space is displayed.<br />
To free up disk space, do any of the following:<br />
• Procedure 1<br />
1. On the Windows 7 operating system, click Start ➙ Computer. On the Windows 8 operating system,<br />
open the Windows Explorer and click Computer.<br />
2. Right-click your C drive entry and then click Properties.<br />
3. Click Disk Cleanup.<br />
4. A list of unnecessary file categories is displayed. Select each file category you want to delete,<br />
and then click OK.<br />
• Procedure 2<br />
1. Open Control Panel.<br />
2. Click Programs.<br />
3. Click Turn Windows features on or off.<br />
4. A list of optional Windows components is displayed. Follow the instructions on the screen.<br />
• Procedure 3<br />
1. On the Windows 7 operating system, click Start ➙ Computer. On the Windows 8 operating system,<br />
open the Windows Explorer and click Computer.<br />
2. Right-click your C drive entry and then click Properties.<br />
3. Click Disk Cleanup.<br />
4. Click Clean up system files.<br />
70 ThinkCentre Edge <strong>User</strong> Guide