windows cannnot install 1.4.2

[Lein Matsumaru]

Background:
  I have sbcl installed version 1.3.15 from sbcl-1.3.15-x86-64-windows-binary.msi
  In the directory D:/SteelBankCommonLisp/1.3.15/

I wanted to install the lastest version(1.4.2) the same way as I did in 1.3.15,
the installer puts bunch of files in the directory D:/SteelBankCommonLisp/1.4.2/
but it removes the directory of 1.3.15, and when I run sbcl.exe, it says

fatal error encountered in SBCL pid 12472(tid 031B2FE8):
can't find core file at D:\SteelBankCommonLisp\1.3.15/sbcl.core

so I copied the direcotory of sbcl-1.3.15 installed in another directory,
so that sbcl.exe (of version 1.4.2) can find D:\SteelBankCommonLisp\1.3.15/sbcl.core
and run again sbcl.exe (of version 1.4.2) it says,

This is SBCL 1.4.2, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses. See the CREDITS and COPYING files in the
distribution for more information.

WARNING: the Windows port is fragile, particularly for multithreaded
code. Unfortunately, the development team currently lacks the time
and resources this platform demands.
fatal error encountered in SBCL pid 2824(tid 001E2FE8):
unknown core file entry: 0x0

OS: Windows 10 (64-bit)

thank you.

[Lein Matsumaru (apple-princess)]

Self resolved.
The reason is that the environment variable SBCL_HOME is set to the directory of sbcl-1.3.15. and this is why I could not run.

So this bug report is marked as Invalid.

Thank you.