JSI Tip 9892. You receive a 'Setup cannot copy the file branches.inf' error during a hotfix install on Windows Server 2003 or Windows XP?

The subject behavior will occur if the version of Update.exe used to install is earlier than 6.1.22.0 and the %SystemRoot%InfBranches.inf file has the read-only attribute set.

NOTE: You may be prompted to retry or cancel the operation.

To resolve this problem:

1. Open a CMD.EXE window.

2. Type the following command and press Enter:

attrib –r %SystemRoot%InfBranches.inf

3. Re-apply the hotfix.