94 TroubleshootingSC A N T H E C O M P U T E R F O R S P Y W A R E — If you are experiencing slow computer performance, you frequentlyreceive pop-up advertisements, or you are having problems connecting to the Internet, your computermight be infected with spyware. Use an anti-virus program that includes anti-spyware protection (yourprogram may require an upgrade) to scan the computer and remove spyware. For more information, go tosupport.dell.com and search for the keyword spyware.Error MessagesFill out the Diagnostics Checklist as you complete these checks. See "Diagnostics Checklist" onpage 149.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the ProductInformation Guide.If the message is not listed, see the documentation for the operating system or the program that wasrunning when the message appeared.AU X I L I A R Y D E V I C E F A I L U R E — The touch pad or external mouse may be faulty. For an external mouse, see"Using the Keyboard and Mouse" on page 27. Enable the Pointing Device option in the system setupprogram. If the problem persists, contact Dell. See "Contacting Dell" on page 150.BA D C O M M A N D O R F I L E N A M E — Ensure that you have spelled the command correctly, put spaces in theproper place, and used the correct pathname.CA C H E D I S A B L E D D U E T O F A I L U R E — The primary cache internal to the microprocessor has failed. ContactDell. See "Contacting Dell" on page 150.C D D R I V E C O N T R O L L E R F A I L U R E — The CD drive does not respond to commands from the computer. See"Dell Support Utility" on page 90.DA T A E R R O R — The hard drive cannot read the data. See "Dell Support Utility" on page 90.DE C R E A S I N G A V A I L A B L E M E M O R Y — One or more memory modules may be faulty or improperly seated.Reinstall the memory modules and, if necessary, replace them. See "Memory" on page 129.DI S K C: F A I L E D I N I T I A L I Z A T I O N — The hard drive failed initialization. Run the hard drive tests in the DellDiagnostics. See "Dell Diagnostics" on page 87.EX T E N D E D M E M O R Y S I Z E H A S C H A N G E D — The amount of memory recorded in NVRAM does not matchthe memory installed in the computer. Restart the computer. If the error appears again, contact Dell. See"Contacting Dell" on page 150.TH E F I L E B E I N G C O P I E D I S T O O L A R G E F O R T H E D E S T I N A T I O N D R I V E — The file that you are trying to copy istoo large to fit on the disk, or the disk is too full. Try copying the file to a different disk or use a largercapacity disk.A F I L E N A M E C A N N O T C O N T A I N A N Y O F T H E F O L L O W I N G C H A R A C T E R S : \ / : * ? “ < > | — Do not use thesecharacters in filenames.GA T E A20 F A I L U R E — A memory module may be loose. Reinstall the memory modules and, if necessary,replace them. See "Memory" on page 129.