Fresh Windows 10 install on a windows 7 system

Question

First, my system specifications:
CPU: i7-920
Memory: 6GB Ram
Storage: 320GB drive, 750GB Drive, 2TB drive, 120GB SSD drive, 250GB SSD Drive
Video: Nvidia 670 GTX
I've been running windows 7 since 2008 or 2009 when i built this PC.  I've installed windows 7 at that point, and up to now, couldn't be bothered to reinstall windows at all.  At this point, C:\ is running out of space with loads of programs I've
installed and stopped using.
Long story short,  when windows 10 officially comes out, i want to upgrade to windows 10, without upgrading windows 7.  I do not want to bring all that mess over into windows 10.  I would rather just install windows 10 on a new drive, and
format the 320GB drive. Last week, my wife surprised me with a 250GB SSD drive for my birthday, which i installed windows 10 preview onto.
I did find an issue that is still driving me up the wall.  Normally, by default in windows 7, Drive C is an aging 320GB seagate drive, D is a 750GB seagate, E is a 2TB WD, F is a 128GB SSD drive, and G is where my new SSD drive is located.  The
issue i came up with, is a permission error to access my data on all of those drives.  After installing windows 10 onto G:, i copied some files over (kee-pass2 data file, steam installer, nvidia graphics driver, a text file with my mIRC registration code)
so that i could get a new system up and running.
The problem I got was when i booted into windows 10, and tried to start or open any of these files, i was denied permission to open any of these files, including the text file with the mIRC registration code.  I've right clicked on these files, went
into security and added myself as the owner of these files, and am still being denied access to these files.  If I downloaded the drivers and the steam installer, they started fine.  The kee-pass2 software couldn't load the database at all, even
when i went to the windows 7 location and loaded the original file.
Steam could not access any of my steam installs on E:\, claiming a permission error.  When i tried to go into my steam directory on e:\ windows reported that i still do not have permission to access the file, and seemed to give me the option to take
ownership.  
To date, it's still claiming I don't have permission to access any of these files.  I've even tried making a local login with the exact same account name as on windows 7, with administrator's access, and am still being denied permission to access these
files.
At this point, I'm feeling an impending sense of doom, and am currently believing that my idea of installing windows 10 without upgrading from windows 7 directly is not going to work.   The only way I can currently think of to resolve this issue is
to reformat all of my drives once I get windows 10 installed, and reinstall whatever games i want back from steam once I'm set up in windows 10.
Is there something I'm missing here?  Is there any thing I can do without taking such a drastic action?  Can I even upgrade to windows 10 for free in the way I want to upgrade?

Answer 1

I hate to say it but you seem to be making this harder on yourself. Reduce the problem to it's simplest form, you want to move data from one volume to another volume and it's giving a permissions error.
The first thing to eliminate is any form of disk protection such as Bitlocker or some sort of TPM implementation. Assuming you definitely don't use anything like that...
The next thing to do is dismount (or physically disconnect in this case) all volumes except the relevant pair, boot from the Win 10 volume and then try to access the information on the "data" volume. If this does not work then reporting back the
exact error would be beneficial. A screenshot of the Disk Management interface would also be very useful. Right-click the start menu for a shortcut to the snap-in.
Finally almost all applications (including Steam games) are best reinstalled fully upon completion of the OS install. The installation process for almost every game includes third party libraries, registry entries and so on that will be missing from the
new OS. Indeed Steam itself can give problems when "importing" a library through physical copy and repair. It's possible, but not advisable.
Moving data isn't the issue.  Reading existing data in it's current location is the issue.  This is occurring even after I renamed the system to be the same as the windows 7 system, and using the same user name and password.
I suppose it's some feature of the NTFS system to keep people from maliciously accessing a "secured" filesystem that they don't really have access to.  The problem with this case is, it's my data and i'm sort of being prevented from doing
so.  
To date, I have been able to get Windows 10 to read some directories after clicking a button to give me that access, and go eat dinner or watch a tv episode.  The issue is that it won't let me into my windows 7 user directory, even after spending an
hour going through my directory.  The only thing I can do is open an admin command prompt and manually xcopy what i want to access.  The other issue is that it appears to randomly forget that it managed to 'convert' some of the directories, and needs
to do it again.. and again.. and again.