Once you've completed that elaborate checklist on the previous pages, you'll be delighted to hear that the Windows 2000 Setup program usually runs very smoothly. All of the preceding warnings and preparatory steps are tantamount to wearing a belt and suspenders: It's better to be safe than sorry.
To upgrade from a previous operating system, follow these steps:
Start your computer.
The Windows 2000 Setup process is simplest when you start up from within some version of Windows.
Insert the Windows 2000 CD-ROM.
If you're asked, "Would you like to upgrade to Windows 2000?" click Yes, even if you plan to perform a clean install.
In any case, now the Welcome screen appears.
You can also install Windows 2000 across a network—just run the Winnt.exe program (if you're running Windows 95, 98, or Me) or the Winnt32.exe program (if you're running Windows NT or 2000) from the I386 folder, wherever on the network where the Windows 2000 Setup files are located.
Figure A-1. Click Next in the first screen of the Windows 2000 Setup Wizard to confirm your choice to upgrade. If Setup doesn't launch automatically when you insert the Windows 2000 CD-ROM, click StartRun, type D:\setup.exe (replacing D with your CD-ROM's drive letter), and click ...