Description of problem:

I never used before virtualbox, and decided to do it, after reading this thread, and installing it on my Fedora 24 VM (VMM used: VMWorkstation 12.5 TYPE 2 hypervisor on WIN10 64 PRO). As I initially had, installation proceeded correctly.

Now I have created yesterday the following directory in my F24 VM (win.iso/) in my /root directory, and downloaded the following images there:

PHP Code:
[root@localhost win.iso]# pwd 
/root/win.iso 
[root@localhost win.iso]# ls -al 
total 3494540 
drwxrwxrwx. 2 root  root        4096 Sep 28 08:56 . 
drwxrwxr-x. 9 root  root        4096 Sep 28 05:58 .. 
-rwxrwxrwx. 1 root  root  2048196608 Sep 27 20:20 7601.17514.101119-1850_Update_Sp_Wave1-GRMSP1.1_DVD.iso 
-rwxrwxrwx. 1 root  root   619581440 Dec 14  2015 Win10PESE_x64.ISO 
-rw-rw-r--. 1 root  root   563934504 Sep 28 08:55 windows6.1-KB976932-X86.exe 
-rwxrwxrwx. 1 root  root   346666496 Sep 27 19:52 Windows_Win7SP1.7601.17514.101119-1850.X86FRE.Symbols.msi 
[root@localhost win.iso]#  
Started virtualbox&... The pop-up window appeared, giving me the choices ONLY for 32bit OSes. My best guess, 7601.17514.101119-1850_Update_Sp_Wave1-GRMSP1.1_DVD.iso is X86 (32bit), so tried to start it with virtualbox. The following appeared:

Cannot create the machine folder 7601.17514.101119-1850_Update_Sp_Wave1-GRMSP1.1_DVD.iso in the parent folder /root/win.iso.

Please check that the parent really exists and that you have permissions to create the machine folder.

With the following messages after exiting virtualbox:

PHP Code:
[root@localhost win.iso]# pwd 
/root/win.iso 
[root@localhost win.iso]# virtualbox& 
[2] 6768 
[1]   Done                    virtualbox 
[root@localhost win.iso]# Qt WARNING: libpng warning: iCCP: known incorrect sRGB profile 
Error creating proxy: The connection is closed (g-io-error-quark, 18) 
Error creating proxy: The connection is closed (g-io-error-quark, 18) 
Error creating proxy: The connection is closed (g-io-error-quark, 18) 
Error creating proxy: The connection is closed (g-io-error-quark, 18) 
Error creating proxy: The connection is closed (g-io-error-quark, 18) 

[2]+  Done                    virtualbox 
[root@localhost win.iso]#  


Version-Release number of selected component (if applicable): 
[root@localhost ~]# dnf info virtualbox
Last metadata expiration check: 1:28:13 ago on Wed Sep 28 12:23:45 2016.
Installed Packages
Name        : VirtualBox
Arch        : x86_64
Epoch       : 0
Version     : 5.1.6
Release     : 1.fc24
Size        : 93 M
Repo        : @System
From repo   : rpmfusion-free-updates
Summary     : A general-purpose full virtualizer for PC hardware
URL         : http://www.virtualbox.org/wiki/VirtualBox
License     : GPLv2 or (GPLv2 and CDDL)
Description : A general-purpose full virtualizer and emulator for 32-bit and
            : 64-bit x86 based PC-compatible machines.

How reproducible: ALWAYS (100%)

Steps to Reproduce: well explained in "Description of the problem:

Actual results: virtual WIN7 32 bit machine failed

Expected results: to have WIN7 32bit VM running (very slow though)!

Thank you in advance,
Zoran