Hi,
I am assuming you are using the QGIS easy installer and not the OSGEO
installer. It is good practice to login as admin in Windows to install any
software. In theory, you can do it from any account but you will be asked
for the admin password (but this will sometime give problems). If you are
not asked for a password, maybe something went wrong. I would uninstall
QGIS and try again with a new downloaded installer. If this fails, try
the OSGEOW4 installer using the standard desktop option.
Unless you specify differently, any user can run QGIS from any account, admin
or not. If you have accents in your account name (like é), you could
have problems with some plugins.
QGIS is always installed with a number of software like Grass, Saga...
You can delete the short cuts from the desktop but, as you become more
proficient in QGIS, they will become handy. You can't delete the softwares.
The OSGEO4W Shell, for example will permit you to use GDAL directly from the
command line. You could do this directly from the windows command prompt but
you would need to change your system variable individually to make sure Windows
find the gdal software libraries and all it's dependencies. The OSGEO4W DOS
prompt does that for you.
Good luck
Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc. 
8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112  Fax: 514.381.4995
www.archeotec.ca
On Jun 15, 2015 12:00 AM, "Peter Cooper [via OSGeo.org]"
<[email protected]> wrote:
I have 64 bit windows 8.1, and 2 users – an administrative user and a
non-administrative one.
As I normally do for installations, I used the non-administrative user to
download and install the QGIS
Standalone installer version 2.8 64 bit. It seemed to install OK except that it
was installed for the administrative user (without asking me for any
password). I only realised this when I could not get it to work from the
desktop of the user I had installed it in, and saw that the sample data had
been
installed into the Documents folder of the administrative user.
Do
I have to keep using it from my administrative user? Did I miss this bit of the
installation documentation?
By
the way I was a little confused to start with by all the new icons that
appeared
on my desktops, and I am assuming I can ignore all but one:
3
on all desktops: MSYS,
SAGA GIS (2.1.2), OSGEO4W Shell
plus
3 just on the administrative user’s desktop:
GRASS
GIS 6.4.3, QGIS Browser 2.8.2, QGIS Desktop 2.8.2
Now
I have found how to run it I am looking forward to exploring QGIS for my own
uses. Thanks to everyone who has contributed to it.
Peter
C
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