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Please see below, <br>
In my experience, if you want QGIS to work within Windows with some
stability with GRASS and SAGA you need to use the OSGEO4W installer
not the standalone.
<ol>
<li>Backup python Plugins(C:\OSGeo4W64\apps\qgis\python\plugins
for Python Plugins)</li>
<li>Delete the OSGEO4W folder </li>
<li>If you have other versions of the software installed via
standalone installers, uninstall all the Programs (QGIS,GRASS,
SAGA etc)</li>
<li>Run a search for QGIS and delete any other folders (besides
your Backup...be careful)<br>
</li>
<li>If you don't have ccleaner or similar install it, click on
Registry (Left icon second from top), Scan for issues & then
Fix selected issues, repeat untill there are no issues.</li>
<li>Download most recent version of OSGEO4W installer (not
standalone QGIS installer see <a class="moz-txt-link-freetext"
href="http://trac.osgeo.org/osgeo4w/">http://trac.osgeo.org/osgeo4w/</a>
)</li>
<li>Do a standard Desktop instillation, It will install QGIS GRASS
SAGA and uDig, R should also be installed (Im open to
correction)</li>
<li>When you have finished over wright the plugins folder with the
backup.</li>
<li>Now you may have some issues initially, but redirecting is
easy enough, just direct everything to the corresponding OSGEO4W
folder.</li>
</ol>
<p>This is what I remember having to do with my last instillation, I
cant currently verify the above, as I don't have sufficient rights
on my Work PC at present. <br>
Contact me if you run into any issues!<br>
</p>
<p>Regards,<br>
</p>
Richard.<br>
<br>
<div class="moz-cite-prefix">On 15/07/2015 11:43, Evanilton Pires
wrote:<br>
</div>
<blockquote
cite="mid:CAK46DNE8mR=8Vq0FPCfmHB1gajM7=HAdrapAUGf7RE-Vvfti=A@mail.gmail.com"
type="cite">
<div dir="ltr">
<div style="font-size:12.8000001907349px">
<div>
<div>Dear QGIS users<br>
<br>
</div>
My name is Evanilton Edgar Serrão Pires, I am an
Environmental Engineering student and a QGIS user.<br>
</div>
<br>
</div>
<span style="font-size:12.8000001907349px">I started to use QGIS
2.2.0 Valmiera last year and since my first installation it
never installed GRASS and SAGA correctly (their shortcut never
appeared correctly and never worked, therefore I could never
use those applications inside QGIS) . At that time I was
using Windows 8. When I started QGIS it appeared a dialogue
box saying «QGIS couldn't find your GRASS installation.</span>
<p style="font-size:12.8000001907349px;margin:0px">Would you
like to specify path (GISBASE) to your GRASS installation?».
And inside QGIS, SAGA and GRASS algorithms never worked
properly. With the new releases of QGIS 2.4.0 Chugiak and
2.6.0 Brighton, when uninstalling, it would uninstall and
install normally, however, always telling me that the previous
version was already installed at the time of the installation,
although I uninstalled it previously.<br>
</p>
<span style="font-size:12.8000001907349px">Early this year, I
bought a new computer (which came with Windows 8.1 Single
Language) and I installed QGIS 2.8.1 Wien in first place (the
first app to be installed right when I bought the computer,
after the anti-virus, of course) and for my joy, it installed
GRASS and SAGA correctly and was working very well, in such
way that I was very happy with it. However, on the 25th of
May, I uninstalled the 2.8.1 version and installed the 2.8.2,
but for my displeasure, the GRASS and SAGA plugins were not
properly installed again.</span><br
style="font-size:12.8000001907349px">
<div style="font-size:12.8000001907349px">I went to the QGIS
project website looking for solutions and I found a page
saying that I should specify the path for the ''.exe'', but in
the program folder there is no executor file. I even
installed GRASS independently again and in the new
installation folder there is no ''.exe'' either. When I
install SAGA independently it does not work with QGIS.<br>
</div>
<div style="font-size:12.8000001907349px">Another strange thing
is that after I have uninstalled the 2.8.1 version and tried
to install the 2.8.2, for the first time when installing it
appeared the information of skipping all the folder creations
and extractions, and at the end it said that QGIS was
installed but the application did not exist in my computer.
When I installed for the second time, it extracted and created
the folders, and when finished QGIS was in my computer.
Attached you may find the file it produced in the first
attempt. <br>
</div>
<div style="font-size:12.8000001907349px"><br>
</div>
<div style="font-size:12.8000001907349px">I always install using
the standalone-installer.<br>
<br>
</div>
<div style="font-size:12.8000001907349px">If you need any
further information, please let me know.<br>
<br>
</div>
<div style="font-size:12.8000001907349px">What should I do? Is
it normal for the software never be completely removed from
the system? Please, I really would like to solve this issue.<br>
<br>
</div>
<div style="font-size:12.8000001907349px">Hope to hear from you
soon.<br>
</div>
<div style="font-size:12.8000001907349px"><br>
</div>
<div style="font-size:12.8000001907349px">QGIS is really good
and useful, and I think we should promote its development.<br>
<br>
</div>
<div style="font-size:12.8000001907349px">All the best to you
guys</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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