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Since October 31, 2013, Windows 7 is no longer available in retail (except for the Professional edition preinstalled):
Windows 7 Starter
Windows 7 Starter is the edition of Windows 7 that contains the fewest features. It is only available in a 32-bit version and does not include the Windows Aero theme. The desktop wallpaper and visual styles (Windows 7 Basic) are not user-changeable. Microsoft originally intended to restrict users of this edition to running three simultaneous applications but this limitation was dropped.This edition was available pre-installed on computers, especially netbooks, through system integrators or computer manufacturers using OEM licenses.
Windows 7 Home Basic
Windows 7 Home Basic was available in "emerging markets", in 141 different countries. Some Windows Aero options are excluded along with several new features. Home Basic, along with other editions sold in emerging markets, include geographical activation restriction, which requires users to activate Windows within a certain region or country.
Windows 7 Home Premium
This edition contains features aimed at the home market segment, such as Windows Media Center, Windows Aero and multi-touch support.
Windows 7 Professional
This edition is targeted towards enthusiasts and small-business users. It includes all the features of Windows 7 Home Premium, and adds the ability to participate in a Windows Server domain. Additional features include support for up to 192 GB of Random-access memory (increased from 16 GB), operating as a Remote Desktop server, location aware printing, backup to a network location, Encrypting File System, Presentation Mode, Software Restriction Policies (but not the extra management features of AppLocker) and Windows XP Mode.
Windows 7 Enterprise
This edition targeted the enterprise segment of the market and was sold through volume licensing to companies which have a Software Assurance contract with Microsoft. Additional features include support for Multilingual User Interface(MUI) packages, BitLocker Drive Encryption, and UNIXapplication support. Not available through retail or OEMchannels, this edition is distributed through Microsoft Software Assurance (SA). As a result it includes several SA-only benefits, including a license allowing the operating of diskless nodes (diskless PCs) and activation via VLK.
Windows 7 Ultimate
Windows 7 Ultimate contains the same features as Windows 7 Enterprise, but unlike the Enterprise edition, it was available to home users on an individual license basis. Windows 7 Home Premium and Windows 7 Professional users are able to upgrade to Windows 7 Ultimate for a fee using Windows Anytime Upgrade if they wish to do so. Unlike Windows Vista Ultimate, the Windows 7 Ultimate edition does not include the Windows Ultimate Extras feature or any exclusive features as Microsoft had stated.
All editions will receive Mainstream Support (new features and bug fixes) until January 2015 and Extended Support (security updates) until January 2020.
You may need to check to see which "service pack" you are currently on.
See below requirements:
System Software — Windows XP & Vista
Windows Vista Business or Ultimate Edition
32-bit OS Installation Only
Windows XP Professional or Home Edition
With Windows XP Service Pack 2 or Service Pack 3
Windows Vista 64-bit (any version)
Windows XP Professional x64 Edition
Windows XP Media Center Edition
Windows 98, Me, 2000, NT, 95, 3.1, DOS
Windows Vista Home and Home Premium Edition
Although Windows Vista Home and Home Premium Edition have not
been tested or qualified by Digidesign, there are currently no known
issues with Vista Home and Home Premium 32-bit operating systems and
Pro Tools M-Powered 7.4 compared to the supported Windows Vista
Business or Ultimate Edition operating systems.
Windows Vista SP1
There are currently no known issues with Service Pack 1 for Windows
Vista based on our initial limited testing and customer feedback.
Although full qualification with all Digidesign products has not been
completed, we do not recommend against updating to SP1, given the number of important overall system fixes in SP1. We do
recommend that you backup your system and create a restore point before
updating to SP1, should you encounter any problems after installing the
Follow that link, scroll down until you see a green button that says 'start download'.... put in the verification code from the blue box into the text box next to it, then click 'Download Logitech QuiCam V-UM14 Windows 95/98, NT/2000/XP'
The built-in Administrator account is hidden from Welcome Screen when a user account with Administrator privileges exists and enabled. In Windows XP Home Edition, you can login as built-in Administrator in Safe Mode only.For XP Professional, press CTRL + ALT + DEL twice at the Welcome Screen and input your Administrator password in the classic logon window that appears.
To have the Administrator account displayed in the Welcome Screen, try one of these methods:
Method 1: Using TweakUI Power Toy for Windows XP
Download TweakUI from here:
v2.00 for Windows XP | v2.10 for XP SP1 and above
Open TweakUI and click "Logon" option in the left pane. Put a checkmark against the option "Show Administrator on Welcome Screen". Click OK to close TweakUI. Logoff and see if Welcome Screen lists Administrator login. Changes are immediate and you can use the Winkey + L to switch back to Welcome Screen to see Administrator account is listed.
Use this procedure to hide/unhide any user account from the Welcome Screen. Please remember, you can still login to a hidden account using CTRL+ALT+DEL classic logon method, but cannot Fast User Switch to a hidden user account.
Method 2 - Manual registry edit
Click Start, Run and type Regedit.exe
Navigate to the following key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ SpecialAccounts \ UserList