Windows 10: Problem installing Windows 10 64 bit

I’m currently using Windows 10 32-bit on my Acer desktop, but need to upgrade to 64-bit to play some games.On my device specs my system type is: 32-bit operating system, x64-based processor. And my installed RAM is 4GB.. Which is all it says I need to be able to upgrade.I have downloaded the Windows 64 bit to USB for a clean update but when I click setup I get error message “This app can’t run on your PC. To find a version for your PC, check with the software publisher”.What am I doing wrong please?

:)

 

Re-install Windows 10 64-bit

Yes, you can go back to 64 bit Windows 10 without purchasing.

• Switching to Windows 10 64 bit is free, you don't have to pay for it. As long as you have a qualifying Windows 7 or 8 or Windows 10 license, you are entitled to use it.
• Switching requires that you perform a new installation, that means files, applications and settings will be deleted.
• You will have to reinstall applications and native 64 bit drivers.
• Backup before migrating: How
  to: Create a system image in Windows 10

Step 1: Download Windows 10 64 bit then create a bootable copy:

How
to download official Windows 10 ISO files

Step 2: Boot from the 64 bit Windows 10 install media, then perform a custom or clean install:

• How to: Perform a custom installation of Windows - Choose this
  option if you want to recover files from Windows.old
• How to: Perform a clean install of Windows 10 - Choose this option
  if you want to erase the drive, files and applications will be deleted.

 

Dying light install problems.

• 
  MINIMUM:
  • OS: Windows® 7 64-bit / Windows® 8 64-bit / Windows® 8.1 64-bit

http://store.steampowered.com/app/239140/?l=english

 

Windows 10 Upgrade 32-bit to 64-bit

So, Windows 10 Upgrade is being rolled out worldwide, and I have 'reserved' my upgrade.

Currently my computer is running Windows 7 Pro 32-bit. I'm planning to 'upgrade' it to Windows 10 64-bit (via fresh install, of course).

After reading many references, these will be the steps I'll do:

1. Let the "Get Windows 10" app upgrade my OS to Windows 10 32-bit
   
2. Note the activation key
   
3. Download the Installation Media for Windows 10, but choosing 64-bit instead
   
4. Perform a clean install
   
5. Reactivate using the activation key in Step #2
   

(Of course I'll backup my data first.)

However, I still have some questions:

1. On Windows 7, the activation key does not differ between 32- or 64-bit versions. Is it still so with Windows 10?
   
2. Will I be able to download a different architecture on Step #3?
   
3. Is there anything I need to prepare beforehand?
   

Thank you for your assistance.