"When using the unattended method of installing multiple hotfixes with a single reboot, it is possible to get the wrong version of a file installed. If a file is locked or in use, it is placed in the Pending File Rename queue, so it can be installed during a restart. If file X exists in multiple hotfixes, at differing versions, it is possible that the wrong one gets installed. Microsoft has released QChain.exe, which version checks / clears duplicate entries in the Pending File Rename queue, so only the latest file version is installed." http://download.microsoft.com/download/9/5..._spl_X86_EN.exe Run it after alle HF's are installed _before_ the restart.