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
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.
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
Make sure your PC’s BIOS supports booting from USB and 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
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 – http://technet.microsoft.com/en-us/library/cc265612.aspx
You can only upgrade Windows Vista or Windows 7 to Windows 7.
In Windows 7 Ultimate or Enterprise you also have the option to install to a virtual hard disk (VHD)
Windows Upgrade to Windows 7
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 chwck if your PC is qualified to run Windows 7.
You can also use the 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.
Scanstate – http://technet.microsoft.com/en-us/library/dd560781.aspx
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 wwith 4 xml files that need to be configured prior to the migration.
Loadstate – http://technet.microsoft.com/en-us/library/dd560804.aspx
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.
Create a Custom XML File – http://technet.microsoft.com/en-us/library/dd560773(WS.10).aspx
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
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 – http://technet.microsoft.com/en-us/library/dd560798.aspx
Migration Store Types
http://technet.microsoft.com/en-us/library/dd560795.aspx
Uncompressed (UNC)
Contains a mirror image and hierarchy tree of the data and settings being migrated and can be viewed using Windows explorer
Compressed
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
Hard-Link
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 sccanstate 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.
Source- http://goo.gl/MVFC1
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