Serial Connector Cannot Be Accessed; Usb Device Problems; Software And Driver Problems - Lenovo ThinkCentre M800 User Manual

2. Click Control Panel. View Control Panel using Large icons or Small icons, and then click Programs
and Features.
3. Do one of the following:
– To turn some Windows features off, click Turn Windows features on or off. Follow the
instructions on the screen.
– To remove some unnecessary programs, select the program you want to remove, and then click
Uninstall/Change or Uninstall.
Insufficient free memory space
Solutions:
• Right-click a blank area on the taskbar and open Task Manager. Then, end some tasks you are not
performing.
• Install additional memory modules. See Chapter 7 "Installing or replacing hardware" on page 51. To
purchase memory modules, go to
http://www.lenovo.com.

Serial connector cannot be accessed

Solutions:
• Connect the serial cable to the serial connector on the computer and to the serial device. If the serial
device has its own power cord, connect the power cord to a grounded electrical outlet.
• Turn on the serial device and keep the device online.
• Install any application programs supplied with the serial device. Refer to the documentation that comes
with the serial device for more information.
• If you added one serial-connector adapter, install the adapter correctly.

USB device problems

This section provides solutions to USB device-related problems.
My USB device cannot be accessed
Solutions:
• Connect the USB cable from the USB connector to the USB device. If the USB device has its own power
cord, connect the power cord to a grounded electrical outlet.
• Turn on the USB device and keep the device online.
• Install any device drivers or application programs supplied with the USB device. Refer to the
documentation that comes with the USB device for more information.
• Detach and reconnect the USB connector to reset the USB device.
I cannot install the Windows 7 operating system using an external USB device
Solution: Go to http://www.lenovo.com/support to download and install USB drivers.

Software and driver problems

This section provides solutions to software- and driver-related problems.
For some programs, dates cannot be sorted in correct order
Solution: Some programs developed before the year 2000 use only the last two digits of a year to sort dates,
assuming the first two digits are 19. Consequently, dates cannot be sorted in correct order nowadays.
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ThinkCentre M800 and M900 User Guide