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How to Install or Upgrade to Windows 7 – Problems – 32 bit to 64 bit

Upgrade Windows 7 – Clean Install – Stock Keeping Units (SKUs)

Starter Edition and Home Basic

  • Light edition good for netbooks
  • No Aero interface, DVD playback or Windows Media Center
  • Maximum 1 physical processor supported

Home Premium Edition

  • Windows Aero UI, DVD playback, Media Center, ICS IIS web server included

Professional Edition Upgrade Windows 7 32 to 64

  • Computer can join a domain
  • EFS and remote desktop support

Windows Ultimate/Enterprise Edition

  • AppLocker, BitLocker. BranchCache and boot from VHD supported

The Professional, Enterprise and Ultimate editions of Windows 7 allow for 2 physical CPU’s whereas all other versions support maximum 1 physical processor.
64-bit versions starting from Windows 7 Home Premium support up to 256 cores while the 32-bit versions support up to 32 cores.

Also note that it is not possible to upgrade Windows 7 Professional to Enterprise without performing a clean instal.

How to Upgrade to Windows 7 – Hardware/System Requirements

  • 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
  • 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
  • 16 GB available hard disk space (32-bit) or 20 GB (64-bit)
  • DirectX 9 graphics device with WDDM 1.0 or higher driver
  • Windows XP Mode requires an additional 1 GB of RAM and an additional 15 GB of available hard disk space
  • BitLocker requires Trusted Platform Module (TPM) 1.2

Upgrade Windows 7 USB Stick Install – Booting Windows from USB

  • Make sure your PC’s BIOS supports booting from USB and that the device has at least 4 GB of free space available
  • Type diskpart from an elevated command prompt
  • Type List Disk to view the disks connected to the computer
  • Select USB disk #
  • Type Clean and then Create Partition Primary
  • Format fs=fat32 quick
  • Active and exit
  • Copy all files from DVD installation disk to flash drive

How to Install Windows 7 – Network Install

To be able to access a network share containing the Windows 7 installation files you will need to create a bootable Windows PE disk. This kind of install is suitable when several  workstations need to be installed and there is no Active Directory Domain Services in place.

Windows Deployment Services (WDS)

WDS is part of AD DS if there is a 2008 server in place and uses multi casting to transmit operating system images to the clients at the same time and not one by one thereby saving valuable time.
WDS requires the client to have a PXE compliant NIC or the PC needs to be able to boot from a WDS discover image.
You can modify the OS system images and also make use of unattended installation files.

Windows Deployment Services

Windows Upgrade to Windows 7  and How to Upgrade Windows 7 32 bit to 64 bit

You can only upgrade Windows Vista or Windows 7 to a higher edition of Windows 7.
In Windows 7 Ultimate or Enterprise you also have the option to install to a virtual hard disk (VHD)

Windows Vista SP1 or higher must be installed to perform an upgrade. You can only upgrade to the same or a higher edition of Windows 7. Bear in mind that you can only upgrade to a higher edition of Windows and that you likewise cannot upgrade windows 7 32 bit to 64 bit.

Side by Side Migrations ensure that all data remains intact so that you have a backup in case anything goes wrong.

Wipe and Load requires that the data be transferred to an external source before performing the migration when the data gets imported again to the freshly installed OS.

Migrating User Data in Windows 7

Windows 7 upgrade problems can be avoided by using the update advisor tool which will check if your PC is qualified to run Windows 7.
You can also use the Windows upgrade advisor and Windows Anytime update to perform a Windows 7 online upgrade.

A very convenient Windows 7 upgrade tool is Windows Easy Transfer which can transfer user settings from PC’s running Windows XP, Vista and 7 using a special easy transfer cable via USB, the network or an external storage device. So an XP to Windows 7 upgrade is much facilitated using this tool. To migrate multiple user accounts on the same computer you need to be logged on as a user with administrative rights.

Windows Easy Trasnsfer acts very much as a Windows 7 upgrade wizard  and will by default create the same account names on the destination computer with a blank password that needs to be changed at logon. New account names can also be given if you choose the advanced option.

 How to Install Windows 7 Upgrade  Using the User State Migration Tool 4.0 (USMT)

USMT found in the Windows Automated Installation Kit (WAIK) is the preferred method for moving user settings  in larger organizations where many PC’s are involved.  It is a command line utility that can be scripted and starts with the Scanstate command to gather all the user settings and data including ACLs but not shared folder permissions.

USMT can be run from Windows server 2003, Windows Vista and later editions of Windows.


After all applications have been installed on the destination computer you then run Loadstate as an administrator to import all the data and settings. USMT can be used to move data and settings from and to Windows XP, Vista and Windows 7 computers. USMT comes with 4 xml files that need to be configured prior to the migration.


  • MigApp.xml contains rules regarding application settings such as favorites, ODBC settings, MS Office and Outlook Express settings etc.. Some custom applications on the other hand require a separate xml file.
  • MigUser.xml sets the rules for user data and profiles including shared data
  • MigDocs.xml takes care of the user documents
  • Config.xml contains rules about the features to be excluded from the migration

Create a Custom XML File

Take care not to use MigDocs.xml and MigUser.xml together as this might result in duplicate files if the instructions regarding target locations are mixed.
It is also possible to create custom xml files in order to reroute all files with the same extension in to a single folder for example.

Reroute Files and Settings

Migration Store Types

Uncompressed (UNC)

  • Contains a mirror image and hierarchy tree of the data and settings being migrated and can be viewed using Windows explorer


  • Single image file containing all files and a catalog file of the files and settings being migrated. Often password encrypted and/or password protected. Cannot be viewed in Windows Explorer


  • Only used in a PC Refresh or Wipe and Load scenario. Data and settings stay in place while the OS gets upgraded

Offline migrations allow a non administrative user to run scanstate in a Windows PE environment while the OS is not running. It can also be ran against a Windows.old directory after an upgrade. Bitlocker needs to be suspended when running UMST.

Clean Install Windows 7 Upgrade


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