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Aptiva TechDoc #10013 Last updated 11/08/99 ![]() |
![]() ![]() ![]() HIMEM.SYS MissingErrors at startup after installing Norton software![]() ![]() |
![]() ![]() ![]() Error message: "HIMEM.SYS is missing. Make sure that the file is in your Windows directory." This may be accompanied by another message: "Unable to control A20 line" ![]() ![]() |
![]() ![]() ![]() Typically occurs restarting the computer via a warm boot (Ctrl+Alt+Del), or after choosing "Restart the computer" from the Win95 Shutdown menu, but can occur during a normal startup ![]() ![]() |
![]() ![]() ![]() Any system with Norton software ![]() ![]() |
![]() ![]() ![]() Usually installing Norton AntiVirus for Windows 95 ![]() ![]() |
![]() ![]() ![]() To prevent the problem from occurring, add the following line to the beginning of the AUTOEXEC.BAT file: SET DOS16M=2 Click Start > Click Run > Type SYSEDIT > Click OK Choose the AUTOEXEC.BAT file Add SET DOS16M=2 as the first line The first two lines of your AUTOEXEC.BAT should look like this (assuming a default install): SET DOS16M=2 @C:\PROGRA~1\NORTON~1\NAVDX.EXE /STARTUP Click File > Click Save Restart the computer ![]() ![]() |
![]() ![]() ![]() Symantec acknowledges this issue in it's Norton AntiVirus Knowledge Base, in support document #199792963136 ![]() ![]() |
![]() ![]() ![]() CLICK HERE TO GO ![]() TO THE APTIVA KNOWLEDGE BASE ![]() ![]() ![]() |
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