Lenovo 11GL002ACA User Manual

Chapter 6. Troubleshooting, diagnostics, and recoveryThis chapter provides solutions to resolve computer problems. Use the basic procedure as a starting pointfor resolving computer problems.Basic procedure for resolving computer problemsPrerequisiteBefore you start, read Appendix A “Important safety information” on page 65 and print the followinginstructions.1. Check that:a. The cables for all connected devices are connected correctly and securely.b. All components have been reassembled correctly.c. All connected devices that require ac power are connected to properly grounded and workingelectrical outlets.d. All connected devices are enabled in UEFI BIOS.2. Use an antivirus program (if any) to see if the computer has been infected by a virus. If the programdetects a virus, remove the virus.3. See Chapter 6 “Troubleshooting, diagnostics, and recovery” on page 29 to resolve the problem you areexperiencing, run the diagnostic program, and recover your operating system.4. If the problem persists, contact Lenovo. See Chapter 8 “Help and support” on page 61.TroubleshootingUse the troubleshooting information to find solutions to problems that have definite symptoms.© Copyright Lenovo 2020 29