<div dir="ltr">I used the 64-bit package.  There don't appear to be any cached packages in C:\ProgramData\Package Cache if that's what you mean.  <div><br></div><div>Perhaps I could try uninstalling both 

<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">OSGeo4W and Grass, clean up any remnants and attempt a re-install of Grass only. </span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">thanks for your reply.</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Kodi</span></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">David (kodi)<div><i><font size="1">Waze State Manager, Maryland</font></i></div><div><i><font size="1">USA Country Manager</font></i><br></div></div></div></div>
<br><div class="gmail_quote">On Sun, Feb 4, 2018 at 2:24 PM, Martin Landa <span dir="ltr"><<a href="mailto:landa.martin@gmail.com" target="_blank">landa.martin@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<span class=""><br>
2018-02-04 18:34 GMT+01:00 David Kodi <<a href="mailto:kodi75.waze@gmail.com">kodi75.waze@gmail.com</a>>:<br>
> I then installed GRASS 7.4.0 independently.   Running 7.4.0 produces a<br>
> series 0x000007b application errors - from clean_temp.exe and g.gisenv.exe.<br>
><br>
> The Error message "Process ended with non-zero return code -1073741571" may<br>
> apply, but this is a fresh installation of GRASS.  Other error posts point<br>
> to vcredist packages, so I reinstalled the distribution packages without any<br>
> luck.<br>
<br>
</span>I remember that I had problem with first produced binaries for G740. I<br>
got similar problem as you. The second build was fine. When do you<br>
have installed G740 using OSGeo4W exactly? 32bit or 64bit? Try to<br>
remove cached packages (to force downloading package again) and then<br>
reinstall `grass` package.<br>
<br>
Ma<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Martin Landa<br>
<a href="http://geo.fsv.cvut.cz/gwiki/Landa" rel="noreferrer" target="_blank">http://geo.fsv.cvut.cz/gwiki/<wbr>Landa</a><br>
<a href="http://gismentors.cz/mentors/landa" rel="noreferrer" target="_blank">http://gismentors.cz/mentors/<wbr>landa</a><br>
</font></span></blockquote></div><br></div>