Lenovo ThinkCentre M73 10B0, Hardware Maintenance Manual

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– To remove some unnecessary programs, select the program you want to remove, and then click
Uninstall/Change or Uninstall .
Excessive number of fragmented files
Solution: Use the Windows disk defragmentation or disk optimization feature to clean up the files.
Note: Depending on the volume of the storage drives and amount of data stored on the storage drives, the
disk-defragmentation process might take up to several hours.
1. Close any open programs and windows.
2. Depending on your Windows version, do one of the following:
• For Windows 7: Click the Start button to open the Start menu, and then click Computer .
• For Windows 8: Open File Explorer, and then click Computer .
• For Windows 8.1: Open File Explorer.
• For Windows 10: Click the Start button to open the Start menu, and then click File Explorer ➙
This PC .
3. Right-click your C drive and then click Properties .
4. Click the Tools tab.
5. Depending on your Windows version, do one of the following:
• For Windows 7: Click Defragment now .
• For Windows 8, Windows 8.1, or Windows 10: Click Optimize . Select the desired drive, and then
click Optimize .
6. Follow the instructions on the screen.
Insufficient memory
Symptom: Insufficient memory
In general, the more memory that is installed, the better the Windows operating system runs.
Action: Install additional memory. For information about purchasing memory, see “Lenovo Support Web
site” on page 34. For step-by-step instructions on installing memory, see “Installing or replacing a memory
module” on page 92.
If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on
page 54 for instructions). If you need technical assistance, see “Lenovo Support Web site” on page 34.
Printer problems
Symptom: The printer does not work.
Actions: Verify that:
1. The printer is turned on and is online.
2. Paper is loaded correctly.
3. The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the
computer.
Note: Non-IEEE-approved printer signal cables might cause unpredictable problems.
1. Any device drivers and other software that came with the printer are correctly installed.
2. You have assigned the printer port correctly in your operating system, application program, or BIOS
settings. For more information about BIOS settings, see Chapter 6 “Using the Setup Utility program”
on page 57.
Chapter 5
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Troubleshooting and diagnostics
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