Describes the Application Compatibility Update for Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 that is dated April 2011.

Describes the Windows Installer 3.1 v2 download that is available as a redistributable system component for Windows 2000 SP3, Windows 2000 SP4, Windows XP, Windows XP SP2, and Windows Server 2003.

1.Insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer. Click to select any options that are required to start the computer from the CD-ROM drive if you are prompted. 2.When the "Welcome to Setup" screen appears, press R to start the Recovery Console.

For a limited time after upgrading Windows, you have the option to go back to the previous version you had installed. This can be useful if you encounter issues with the new version, such as compatibility problems with your software or hardware, or if you simply prefer the way things worked before.

If you encounter a Windows Genuine Advantage (WGA) message that there is a problem with the product key or the volume license key for your installation of Microsoft Windows XP or Windows Vista, use one of the following methods to resolve the issue.

Learn how to create installation media for installing or reinstalling Windows.

To work around this problem, use a disk sector editor to change the BPB media descriptor byte to the appropriate value. For example, you can use the DiskProbe tool to do this on a Windows NT 4.0-based, Windows 2000-based, Windows XP-based, or Windows Server 2003-based computer.

When you attempt to start Windows XP, you may receive one of the following error messages: Windows could not start because of a computer disk hardware configuration problem. Could not read from the selected boot disk. Check boot path and disk hardware.

Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Use the 32-bit installer if you’re using a 32-bit version of Windows and the 64-bit installer with a 64-bit version of Windows. To determine which version of Windows you’re using, follow the steps in Method 1 or 2.