40 TroubleshootingFor more information on Dell Support Center, see the Dell TechnologyGuide. It is available in Windows Help and Support (Start →Help andSupport) and at Dell Support Website.Drive ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in the Product Information Guide.Fill out the "Diagnostics Checklist" on page 57 as you complete these checks.EN S U R E T H A T MI C R O S O F T ® WI N D O W S ® R E C O G N I Z E S T H E D R I V E —• Click Start →Computer.If the drive is not listed, perform a full scan with your antivirus software tocheck for and remove viruses. Viruses can sometimes prevent Windows fromrecognizing the drive.TE S T T H E D R I V E —• Insert another CD, DVD, or BD to eliminate the possibility that theoriginal media is defective.• Insert a bootable media and restart the computer.CL E A N T H E D R I V E O R D I S K — See Dell Technology Guide.CH E C K T H E C A B L E C O N N E C T I O N SCH E C K F O R H A R D W A R E I N C O M P A T I B I L I T I E S — See Dell Technology Guide forinstructions on troubleshooting software and hardware problems.RU N T H E DE L L DI A G N O S T I C S — See "Pre-Boot Self Assessment (PSA)Diagnostics and Dell 32 Bit Diagnostics" on page 35.Hard drive problemsAL L O W T H E C O M P U T E R T O C O O L B E F O R E T U R N I N G I T O N — A hot hard drive mayprevent the operating system from starting. Try allowing the computer toreturn to room temperature before turning it on.RU N CH E C K DI S K —1 Click Start →Computer.2 Right-click Local Disk (C:).