Lenovo ThinkCentre M78, User Manual

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To free up disk space, do any of the following:
• Method 1
1. On the Windows 7 operating system, click Start
➙
Computer . On the Windows 8 operating system,
open File Explorer and click Computer . On the Windows 8.1 operating system, open File Explorer.
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 .
• Method 2
1. Open Control Panel.
Note: For detailed information on how to open Control Panel on Windows 8 and Windows 8.1, see
“Accessing Control Panel on the Windows 8 or Windows 8.1 operating system” on page 20.
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.
• Method 3
1. On the Windows 7 operating system, click Start ➙ Computer . On the Windows 8 operating system,
open File Explorer and click Computer . On the Windows 8.1 operating system, open File Explorer.
2. Right-click your C drive entry and then click Properties .
3. Click Disk Cleanup .
4. Click Clean up system files .
5. Click the More Options tab.
6. In the Programs and Features area, click the Clean up button.
7. A list of installed programs is displayed. Select the program that you want to remove. Click
Uninstall/Change or Uninstall .
• Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application. The folder
names and procedures vary depending on your e-mail application. If you need assistance, see the
help system for your e-mail application.
Excessive number of fragmented files
Symptom: Excessive number of fragmented files
Action: Run the Windows Disk Defragmenter program.
Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk
drive, the disk-defragmentation process might take up to several hours to complete.
On the Windows 7 operating system, do the following:
1. Close any programs that are currently running and close any open windows.
2. Click Start ➙ Computer .
3. Right-click your C drive entry and then click Properties .
4. Click the Tools tab.
5. Click Defragment Now , then click Continue .
6. Click Defragment Now again to start a disk-defragmentation process.
Chapter 10
.
Troubleshooting and diagnostics
121