System lock-ups and hangs usually cannot be consistently reproduced and can therefore be very difficult to diagnose. Solving lock-ups and hangs requires a patient, systematic process of elimination approach to troubleshooting. These problems can be caused by hardware or software, so it is very important to note any newly added options, applications, or updates. It is important to note that removing the software that installed the cause of the problems may not remove all of the components installed. It may become necessary to reload the operating system to remedy the cause of the lock-ups or hangs. ThinkPad and ThinkCenter products with XP and Vista preloads manufactured on or after 10/14/2011.
- Run Lenovo Solution Center and investigate any errors found.
- Make sure the latest BIOS code has been installed.
- Scan the drive for viruses and other "malware". Use the latest virus definitions available from the software manufacturer.
- Checking for updates should be done automatically and on a daily basis.
- Most virus scanners do not detect spyware or adware. Spyware is a significant cause of performance problems and poses serious security concerns. Spyware scanners should be used with the same level of concern as virus scanners. However, care should be taken when chosing a spyware scanner as some will install their own, usually non-malicious, form of spyware.
- Adware can cause excessive numbers of unwanted pop-ups when browsing the internet.
- Check the system resources and make any adjustments as needed.
- Use ConfigSafe, System Restore, or similar restoration utility to save the current settings, then load the original configuration. Compare performance.
- Uninstall any suspected problem software.
- Check for memory added as an option and verify that the part numbers are correct.
- Verify that any installed cooling fan is operating and airflow is not blocked.
- Clear the CMOS using the password erase procedure in the Hardware Maintenance Manual.
- Reseat all adapters, memory, cables, and power connectors.
- Return the computer to as near an "out of box" condition as possible.
- Remove recently installed options such as video cards, memory and drives.
- Remove any exterior cable extensions to keyboards, mice and monitors.
- Remove any exterior peripheral additions, including modems, printers, and USB devices.
- Ensure that all applicable drivers have been updated to the most current offered. See Downloads and drivers.
- Install a hard disk drive with a known good operating system, if possible, to see if the problem remains with the computer. If it does, the computer hardware is at fault.
- If these steps have not solved your problem: Or refer to "Need more help?"
The use of programs such as ScanDisk, Check Disk (CHKDSK), Disk Defragmenter, and ConfigSafe (if installed) can keep your system operating at its peak. More detailed information about Scan Disk, Check Disk, and Disk Defragmenter can be found in Windows Help. Windows Help can be found by clicking Start, then click Help.
- Scan Disk and Check Disk (Microsoft Windows Operating system) check the disk platters for defects and also look for lost clusters that are sometimes created when a program aborts.
Please refer to http://support.microsoft.com for additional instructions on using the CHKDSK, ScanDisk, and Disk Defragmenter utilities.
If these steps have not solved your problem, refer to "Need more help?"
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