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Booting Memtest86+ from Harddisk

If there is no bootable media available, you can easily boot memtest86+ also via Windows boot.ini using GRUB4DOS. You just need to follow the instructions from this post.
In case this gets lost somehow, here are the step-by-step instructions:

1) Download current grub4dos package and extract grldr to c:\
2) Download current memtest86 Pre-compiled bootable binary and extract it to c:\memtest.bin
3) Create c:\menu.lst with the following content:

color black/cyan yellow/cyan
timeout 2
default 0

title start Memtest86+
kernel /memtest.bin

title Back to NTDLR
chainloader /ntldr

title Restart machine
reboot

4) Add the line

c:\grldr="Memtest86+"

to the [operating systems] section of your c:\boot.ini, it may read something like that:

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /NoExecute=Opt
c:\grldr="Memtest86+"

5) Reboot and start memtest86.

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