Autoexec.bat and config.sys boot file examples

Diy-Computer-Repair can help!

Boot files tell the computer what to do when it starts, loads cd/dvd or usb device drivers for access to those devices in DOS.

Note:
Before you start on your adventure read entire this page, it may save you some work and heartache searching for drivers.

Autoexec.bat and config.sys file examples

To use these examples copy and paste to Notepad. Do not use Word or any other word processing program, the file will not work. Also see the note at the bottom of the page on device drivers.

CD/DVD ROM files:

Autoexec.bat

@echo off
cls
MSCDEX.EXE /D:IDECD001 /L:E

Config.sys

DEVICE=A:\HIMEM.SYS
DOS=HIGH,UMB
DEVICEHIGH=A:\XXXXX.XXX /D:IDECD001
files=30
buffers=30

Note:

You will have to find the appropriate driver for your usb or cd/dvd rom drive, I can not supply all the drivers out there because there a literally millions!

You will also need to find these two files, from your hard drive or search Microsoft for the names:

HIMEM.SYS
MSCDEX.EXE

Add the driver files to the floppy with those above.

You will find more information on Batch Files in the Self Computer Repair E-Book.

Where I have put the XXXXX.XXX is where you paste your driver name, be sure to copy the actual driver file to the floppy, do not create any folders (or directories) on the floppy, it will cause a boot time error if the drivers are in a separate folder (or directory).

When you find your drivers there should be a text file called readme or something similar, check for the line that reads DEVICE=A:\XXXXX.XXX /D:IDECD001, you are looking for the part that reads: /D:xxxxxxxx that will be the drive parameter for MSCDEX.EXE to find the driver when it loads, copy the line and past it after the /D: in both the autoexec.bat and config.sys. Save both files and then copy them with the other files to the floppy. Test the floppy, when you start the system you should be at the a: prompt, it will look like this: a black screen with a A:\ Next you need to test the drivers and insure you can access the cd/dvd or usb drive. The drive will be E: for the cd/dvd or the usb drive, type D: at the prompt, press enter. Do you have E:\ or an error? If you have a E:\ then you are done. Congratulations!

If on the other hand you have an error you need to look at the syntax (how the command is formed) for the cd/dvd or usb driver in both autoexec.bat and config.sys files to insure they are correctly typed.

Now you have access to the computer without going into the installed OS. This opens a new set of opportunities for you.

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