If in doubt, you should manually install a test instance first and satisfy yourself there are no contentious issues. You should also bear in mind that if you disable prompting, it is assumed you tacitly agree to those prompts that would normally be displayed (for example, our terms & conditions) and/or that you are aware of the issues that would normally be mentioned. You can also add /CLOSEAPPLICATIONS or /FORCECLOSEAPPLICATIONS parameters to instruct the installer to close applications that are using files that need to be updated by the setup or force close when closing the applications. To prevent the setup from restarting the system, you can add /NORESTART command line parameter.

If it needs to reboot to replace the file then it will immediately reboot, without prompting, once the installation is complete. Therefore, if the installer cannot replace a file because it is being used, then it will replace it on reboot.

WARNING: When using a silent installation, no prompting can be done. It is important that it is the first command line parameter.

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