When you upgrade your computer to Windows XP, you receive a message similar to the following, during the Finalizing Installation phase of the upgrade:
setup cannot copy <FileName.dll> ensure that the location specified below is correct <Drive Letter:>\i386NOTE: The compressed <FileName.dl_> may exist at <Drive Letter:>\i386.
To workaround this behavior:
1. Press SHIFT+F10 to open a command prompt.
2. Type the following command and press Enter:
Copy <Drive Letter:>\i386\<FileName.dl_> %systemroot%\$win_nt$.~\i386
Where <Drive Letter:> is the drive letter where the installation media exists, and <FileName.dl_> is the compressed form of the <FileName>.dll> file.
3. Close the command prompt and press OK.