Selasa, 07 April 2009

How to Upgrading to Windows XP Pro from Windows NT/2000

Upgrading from Windows NT 4.0 or 2000 to Windows XP is, unlike the 9x/Me upgrade, guaranteed to be relatively painless for most users. This is because Windows XP is simply the next version of the NT/2000 product family, and it doesn’t represent a major architectural change from those previous versions. As you probably know, Windows 2000 was to have been called Windows NT 5.0 before the marketing droids at Microsoft got a hold of it. Well, on that note, XP is really NT 5.1, a version number that should conjure up images of a relatively minor upgrade.

And it is, especially for Windows 2000 users. This is because, at its heart, XP is simply Windows 2000 with a new task-based user interface, improved application and hardware compatibility, and other small features. During the development of Windows 2000, Microsoft did all the hard work of making the NT 4.0 upgrade as seamless as possible, and this work is carried over for XP. For 2000 users, the upgrade is even simpler, because there are relatively few changes under the hood. All in all, most modern PCs running NT 4.0 or 2000 should be easily upgradeable to XP.

A cautionary note, however. Unlike the 9x/Me upgrade, the NT/200 does not offer any uninstallation capabilities, so it’s a one way street: Once you begin the upgrade, the only way back to your previous OS is to wipe out the hard drive and reinstall from scratch. For this reason, I advise carefully backing up your files and settings before proceeding with the upgrade. Not coincidentally, Microsoft offers a tool that does just this, the Files and Settings Transfer Wizard. But this tool will only restore your backup to an XP box, so it might be better to use a traditional backup program for this just in case.

Understanding NT 4.0-specific issues
Windows NT 4.0 users upgrading to Windows 2000 or XP won’t get the benefit of the new directory structure, which places user profiles in the C:\Documents and Settings folder by default, rather than C:\WINNT\Profiles. It’s not a big deal, but NT 4.0 systems upgraded to 2000/XP will retain the old directory structure.

Also, the version of NTFS used in XP is much more recent than that used in NT. As I recall, NT 4.0 SP5 added support for NTFS 3, which was used in Windows 2000. XP, however, uses NTFS 3.1, so if you decide to later wipe out XP for some reason and reinstall NT, you’ll have to remove the XP partition, re-create it, and format it again during NT Setup.

Pre-installation checklist
Before you upgrade to XP, there are just a couple of things to think about.

1. Don’t bother with the latest system updates - Because XP includes the latest security and product updates from Microsoft, there’s precious little reason to update the system before upgrading.

2. Run scan disk and the disk defragmenter before upgrading. Upgrading to XP is going to cause a lot of damage to the structure of files on your system, so you might as well clean it up first. You’re going to want to defrag the disk after installation too, however, but getting the hard disk off on the right foot will speed the upgrade.

3. Run the Upgrade Advisor and see whether you’re going to need any updated drivers or software updates. If so, download them now and have them on the hard dri


ve so you can install them after XP is installed.

4. Backup - As previously mentioned, backup your critical data. There is no way back if the XP upgrade fails for some reason.

OK, let’s take the plunge and upgrade to XP.

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