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Windows XP Professional ISO download for 32 bit and 64 bit pc. Windows XP Professional SP3 ISO bootable image free download. Windows XP is light, stable and super fast. It has been the most popular operating system of Microsoft. Overview of Windows XP Service Pack 3 ' Implements and supports the SHA2 hashing algorithms (SHA256, SHA384, and SHA512) in X.509 certificate validation. This has been added to the crypto module rsaenh.dll. ' Our 'Microsoft Base/Strong/Enhanced Cryptographic Providers' are implemented on Rsaenh.dll. Windows XP Service Pack 3 (SP3) and Office 2003 will be reaching end of support in April 2014. We want to help you avoid the risk of running an unsupported version of Windows and Office, and to assist with your IT planning for 2012.
Windows XP is a eligible upgrade product for Windows 7, but you cannot do an in place upgrade from Windows XP to Windows 7. Clean install only.
Upgrading from Windows XP?
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Please read these instructions carefully and completely before you begin installing Windows 7: There are important steps that you need to follow to upgrade from your PC from Windows XP to Windows 7 in order to preserve your files and settings.
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Before you begin, you'll need to back up all your data to an external storage device, and you'll need all of the installation discs for programs you want to keep. Please make sure you have an external hard drive (see details below).
More detailed instructions are available at windows.microsoft.com/upgrade-windows-xp. Here are the basic steps.
1. Run Windows Upgrade Advisor (windows.microsoft.com/upgradeadvisor) to see if there are any known issues that might affect the installation and whether you should install the 32 or 64 bit version of Windows 7.
2. Save your files and settings on an external hard drive using Windows Easy Transfer (windows.microsoft.com/windows-easy-transfer). If you don't have an external hard drive you won't be able to use Windows Easy Transfer. Alternatively, you can copy files you want to keep on a USB flash drive, CDs, or DVDs.
3. You'll need to manually reinstall your programs, such as Microsoft Office, after you install Windows 7. Gather the installation discs for your programs and any associated product/license keys. You might be able to download some programs from the Internet. For example, Windows Live Messenger can be installed from download.live.com/messenger.
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4. Inset the Windows 7 DVD into your PC. When asked 'Which type of installation do you want? click 'Custom (advanced).'
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5. After Windows 7 is installed, use Windows Easy Transfer to restore your files and settings.
If you're not comfortable installing Windows 7 yourself, check with a local retail store or PC services company to see if they offer upgrade services.
http://www.notebooks.com/2009/10/13/winxp-to-win7/
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