add Cora's note on convincing Windows to use installer

Author: briantoby

webdocs/install-g2f-win.rst

@@ -17,7 +17,14 @@ Windows GSAS2MAIN Installation Details
    :alt: browser confirm safe
    :align: right
 
-2) You may need to confirm that the file you have just downloaded is safe to open. If your employer's or school's security policy will not allow this file to be downloaded or run, seek help from your local computer assistance office.
+2) You may need to confirm that the file you have just downloaded is
+   safe to open.
+   Apparently the newest windows security makes it hard to install
+   software that is not registered with Microsoft: I am told you have
+   to first right click, go to Properties, and check the “Unblock”
+   box. If your employer's or school's security policy will not allow
+   this file to be downloaded or run, seek help from your local
+   computer assistance office. 
 
 .. raw:: html
 

webdocs/install.rst

@@ -25,8 +25,13 @@ For Windows download file https://github.com/AdvancedPhotonSource/GSAS-II-buildt
 After the installer is started 
 You will have a choice for where to install the software (the default is usually OK, but something like ``c:\software`` might be better, if your computer security allows that.)
 
-More complete installation instructions on the GSAS2MAIN
-installation process on windows are linked below. 
+You do not need to have administrator access to your computer to
+install GSAS-II, but apparently the newest windows security makes it
+hard to install software that is not registered with Microsoft: I am
+told you have to first right click, go to Properties, and check the “Unblock” box.
+
+More complete installation instructions on the 
+installation process with GSAS2MAIN on windows are linked below. 
 
 .. index:: gsas2main windows details
 .. toctree::