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• If the software program used to work correctly, but does not work correctly now, do the following:
On the Windows 7 operating system, click Start ➙ Control Panel ➙ System and Security ➙ System ➙
System Protection ➙ System Restore.
• If you are unable to resolve the problem through other methods, uninstall the software program and
reinstall it.
If these actions do not correct the problem, you might need technical assistance. Contact your software
manufacturer or see “Additional information resources” on page 29 for details.
USB problems
Symptom: The USB connectors cannot be accessed.
Actions:
• Make sure the USB cable is securely connected to the USB connector and to the USB device. If the USB
device has its own power cord, make sure it is attached to a properly grounded electrical outlet.
• If the USB device has its own On/Off switch, make sure it is in the On position.
• If the USB device has an Online switch, make sure it is in the Online position.
• If the USB device is a printer, make sure paper is loaded correctly.
• Make sure any device drivers or other software supplied with the USB device is correctly installed.
Refer to the documentation for the USB device.
• Reset the device by detaching and reattaching the USB connector.
If these actions do not correct the problem, run the diagnostic programs to test the USB connector (see
“Diagnostics” on page 49 for instructions). If the USB device came with its own diagnostics, run those
diagnostics against the USB device. If you need technical assistance, see “Additional information resources”
on page 29.
Diagnostics
Diagnostic programs are used to test hardware components of your computer. Diagnostic programs can
also report operating-system-controlled settings that interfere with the correct operation of your system.
There are two programs preinstalled on your computer to help you diagnose computer problems:
• Lenovo ThinkVantage Toolbox (used when you are running the Windows operating system)
• PC-Doctor for Rescue and Recovery (used when you cannot start the Windows operating system)
Notes:
1. You can also download the PC-Doctor for DOS diagnostic program from
http://www.lenovo.com/support. See “PC-Doctor for DOS” on page 50 for detailed information.
2. If you are unable to isolate and repair the problem yourself after running the programs, save and print
the log les created by the programs. You will need the log les when you speak to a Lenovo technical
support representative.
Lenovo ThinkVantage Toolbox
The Lenovo ThinkVantage Toolbox program helps you maintain your computer, improve computing security,
diagnose computer problems, get familiar with the innovative technologies provided by Lenovo, and get
more information about your computer. You can use the diagnostics feature of the Lenovo ThinkVantage
Toolbox program to test devices, diagnose computer problems, create bootable diagnostic media, update
system drivers, and view system information.
Chapter 5. Troubleshooting and diagnostics 49