"An Error Occurred Copying File Cdrom.sys" Error Message During Windows XP Upgrade

SYMPTOMS

When you try to perform an upgrade installation of Windows XP, you may receive the following error message:

An error occurred copying file cdrom.sys to C:\$win_nt$.~bt\cdrom.sys. The file is missing.

To resolve this problem, follow these steps:

Click Start, click Run, type msconfig in the Open box, and then click OK
On the General tab, click Selective Startup, and then click to clear the following check boxes:
- autoexec.bat
- config.sys
Click OK, and then restart your computer.
Run the Windows XP setup program again.